All calculators
1,246 free, browser-based calculators across 33 categories. No login, no tracking of your inputs.
Utility384
Unit conversion in technical work.
- ⌨️ Typing Practice Drills
- ⌨️ Typing Speed Test
- ⏲️ Cron Explainer
- ♿ WCAG Contrast Checker
- ⚛️ Periodic Table
- 🇮🇳 Section 80D Health Insurance Tax Deduction
- 🇮🇳 Section 87A Rebate Calculator (India)
- ✅ Habit Tracker
- ✖️ Times Table Trainer
- ❌ Tic-Tac-Toe
- ➕ Mental Math Drill
- 🌐 Multilingual Typing
- 🌸 Mandala Generator
- 🎨 Drawing Canvas
- 🎨 Stroop Test
- 🎯 Aim Trainer Plus
- 🎯 Bingo Card Generator
- 🎱 Magic 8-Ball
- 🎲 Boggle
- 🎴 Memory Match Pairs
- 🎶 BPM Finder
- 🎹 Piano Keyboard
- 🏓 Pong
- 🐦 Flappy Bird
- 🐵 Chimp Test
- 🐹 Whack-a-Mole
- 👁️ Visual Memory
- 💡 Lights Out
- 💣 Minesweeper
- 💪 Tabata HIIT Timer
- 💻 Code Typing Test
- 📚 Rubik's Cube Tutor
- 📝 Custom Text Typing
- 📡 NATO Alphabet
- 📻 Morse Code Translator
- 🔀 Word Scramble
- 🔐 Caesar Cipher
- 🔠 ASCII Art Generator
- 🔢 Number Memory
- 🔴 Connect Four
- 🖼️ Nonograms / Picross
- 🗼 Tower of Hanoi
- 🧊 Rubik's Cube 3D Sim
- 🧊 Rubik's Cube Timer
- 🧘 Meditation Timer
- 🧠 N-Back Test
- 🧠 Sequence Memory
- 🧩 15-Puzzle (Slide)
- 🧱 Breakout
- 🪙 Coin Flip
- 🪢 Hangman
- 🫁 Box Breathing 4-4-4-4
- 😴 4-7-8 Breathing
- 🟦 Pixel Art Editor
- 6-Minute Walk Test (6MWT) Calculator
- 80C Investment Options
- Acres to Hectares Converter (+ 8 land units)
- Add Time Calculator (Hours + Minutes + Seconds)
- Advance Tax Calculator
- After Tax Income Calculator
- Alternative Minimum Tax (AMT)
- Angle Converter (Degrees, Radians, Gradians, Turns)
- Ares to Hectares Converter
- ATM to Pascals Pressure Converter
- Bar to PSI Pressure Converter
- Base32 Encoder / Decoder
- Battery Life Calculator
- Billion to Trillion Number Converter
- Butter Substitute Calculator
- Buy vs Rent Decision Calculator (7 countries)
- Byte/KB/MB/GB Converter (Decimal vs Binary)
- Caffeine Half-Life Calculator
- Camping Pack Weight Calculator
- Canada Carbon Rebate Calculator
- Canada Express Entry CRS Calculator 2026
- Capacitor Charge Time
- Car True Cost per Mile
- CC to mL Volume Converter (Medical + Engine)
- CD Ladder Calculator
- Ceiling Fan Size Calculator
- ChatGPT Prompt Library
- Child Tax Credit Calculator
- Childcare Cost Calculator
- Christmas Tree Cost Calculator
- Clothing Size Converter
- COBRA Cost Calculator
- Coffee Cost per Day
- Cold Brew Calculator
- College Net Price Calculator
- Color Converter
- Color Picker
- Compound vs Simple Interest
- Couples Counseling Cost Calculator
- Creatine Loading Calculator
- Cricket Run Rate Calculator
- Cron Expression Builder
- CSV to JSON Converter
- cURL to fetch Converter
- D&D Experience Points (5e)
- Data Transfer Time
- Day of the Week Calculator
- Decimal to Binary Number Converter
- Decimal to Text Converter
- Depreciation Recapture Calculator
- Device Info Checker
- Dew Point Calculator
- Dice Probability Calculator
- Dimensional Weight Calculator
- Discount Calculator
- Divorce Cost Calculator
- Dog Vaccination Cost Calculator
- Dollar Cost Averaging (DCA)
- Domestic Help Cost Calculator
- DRIP Calculator
- Earned Income Tax Credit (EITC)
- Earthquake Energy Calculator
- eBay Fee Calculator
- Egg Substitution Calculator
- Elder Care Cost Calculator
- Electricity Bill Calculator
- Engagement Photo Cost Calculator
- Enterprise Value Calculator
- ESOP / RSU Tax Calculator
- ESPP Discount Calculator
- Estate Planning Cost Calculator
- Estimated Tax Penalty
- EV Charge Time Calculator
- EV vs Gas TCO Calculator
- Exponential Growth Calculator
- FD & RD Calculator
- Fertility Window Calculator
- FICA Tax Calculator
- Financial Freedom Calculator
- Fish Tank Stocking Calculator
- Fishing Line Test Calculator
- Flight Time Calculator
- Flight vs Drive Calculator
- Flour Substitution Calculator
- Framing Calculator
- Freelancer True Hourly Rate Calculator
- French Press Calculator
- FSA Calculator
- FSA Dependent Care Calculator
- Gallons to Liters Converter
- GIS Calculator
- Git Cheatsheet
- Glycemic Load Calculator
- Goal Planner
- Gold Price Calculator
- GPT Token Counter + Cost
- GraphQL Formatter
- Gratuity Calculator
- Growing Zone Frost Calculator
- GST Calculator
- GSTIN Validator
- Half-Life Calculator
- Headline Analyzer
- Heat Index Calculator
- Helmet Size Calculator
- Hertz (Hz) to RPM Frequency Converter
- Hike Calculator
- Home Buyers Plan (HBP) Calculator
- Home Seller Net Proceeds
- Horsepower to Kilowatts Power Converter
- Hotel Total Cost Calculator
- Hours Calculator
- Hours to Seconds/Minutes Converter
- Hours Worked Calculator
- HRA - Metro vs Non-Metro
- HRA Exemption Calculator
- HSA Calculator
- HSA vs FSA Calculator
- HSA vs FSA: Triple-tax-advantaged HSA vs use-it-or-lose-it FSA - which healthcare account wins?
- HTML Formatter
- HTML Minifier
- HTTP Status Codes Reference
- Hydroponic Nutrient (EC/PPM)
- I-Bond / TIPS Calculator
- Ideal Weight Calculator
- IDR / SAVE Student Loan Calculator
- IFSC Code Lookup
- Income from House Property
- Income Tax Calculator
- Income Tax Slabs - Reference
- Indian Number Formatter
- Inflation Adjusted Return
- Inflation Adjusted Returns Calculator
- Inflation Calculator
- Instagram Engagement Rate Calculator
- Interest Rate Shock
- Intermittent Fasting Calculator
- International GPA Converter
- Invoice Late Fee Calculator
- IPv4 Subnet Calculator
- IR35 Inside vs Outside Calculator
- ISO / NSO Stock Options Tax
- ITR Form Selector
- IVF Cost Calculator
- JavaScript Formatter
- JavaScript Keycode Finder
- JavaScript Minifier
- Jet Lag Recovery Calculator
- JSON Diff Checker
- JSON Minifier
- Keto Macro Calculator
- Kids Screen Time Calculator
- Kitchen Cabinet Cost Calculator
- km/h to mph Converter
- kWh to Joules Energy Converter
- Lab Test Cost Calculator
- Laundromat vs Home Washer
- Lease Buyout Calculator
- Leave Encashment
- LED Series Resistor Calculator
- Life Expectancy Calculator
- Line Counter
- Liters ↔ Gallons Converter
- LTCG Calculator (FY 2025-26)
- Lunar Phase Calculator
- Macro Calculator (IIFYM)
- MAGI Calculator (Modified AGI)
- Marginal Tax Rate Calculator
- Mattress Size Comparison
- Mbps to MB/s Internet Speed Converter
- Medicare IRMAA Calculator
- Medicare Part D Cost
- Menopause Symptom Score (MRS)
- Merge PDF Files
- Meta Tag Analyzer
- Modulo Calculator
- Monthly Dating Cost Calculator
- Moving Cost Calculator
- Music Tempo (BPM) Calculator
- Notes - free private notebook
- Notice Period Buyout
- Number Base Converter
- Number Sequence Calculator
- Number to Indian Words
- OAS Clawback Calculator
- Offer Comparison
- OG/FG Refractometer Calculator
- Oil Change Cost Calculator
- Old vs New Regime
- Open Graph Preview
- Overtime Pay Calculator
- PAN Validator
- Pangram Solver
- Parking Cost Calculator
- Passport Renewal Cost Calculator
- Password Strength Checker
- Patreon Creator Income
- PayPal Fee Calculator
- Payroll Calculator
- PF Withdrawal Rules
- PIN Code Decoder
- Pixel Density (PPI) Calculator
- Pizza Size Value Calculator
- Portfolio Rebalancing Calculator
- Pre-Medicare Healthcare Cost
- Precise Grams ↔ Ounces Converter
- Precise Miles ↔ Kilometers Converter
- Present Value Calculator
- Probability Calculator
- Profit Margin / Markup
- Property Management Fee Calculator
- PSLF Calculator
- PTO Accrual Calculator
- px / rem / em Converter
- QBI Deduction Calculator (Section 199A)
- Quarterly Estimated Tax Calculator
- Quebec QPP vs CPP Comparison
- Reading Speed Calculator
- Reading Time Calculator
- Relocation Cost Calculator
- Remove Duplicate Lines
- Remove Empty Lines
- Remove Line Breaks
- Rent Receipt Generator
- Resistor Color Code Calculator
- Restaurant Bill Split
- Rideshare vs Car Ownership
- Ring Size Converter
- RMD Calculator
- Roast Time Calculator
- Rotate and Flip Image
- RSU Tax Calculator
- Rule of 115 (Tripling)
- Running Economy Calculator
- Sales Commission Calculator
- Sales Tax / VAT Calculator
- Scientific Calculator
- Screen Resolution Comparison
- Seconds to Minutes/Hours/Days Converter
- Section 179 Deduction Calculator
- Self-Employment Tax Calculator
- Sentence Case Converter
- SEO Title + Meta Length
- Shed Cost Calculator
- Shoe Size Converter
- Should I Relocate? Decision Matrix 2026
- Shower Water Cost Calculator
- Ski Difficulty Converter
- Smoking Cost Calculator
- Social Security Benefit Calculator
- Social Security Claiming Age
- Social Security Spousal Benefit
- Sod Calculator
- Soffit + Fascia Calculator
- Solar Angle Calculator
- Solar Panel Tilt Angle
- Solar vs Utility Calculator
- Special Characters
- Speeding Ticket Cost Calculator
- Split PDF by Page Range
- SQL Formatter / Beautifier
- Square Feet to Square Meters Converter
- SS Earnings Test Calculator
- Standard Deduction History
- Statistics Calculator
- Statutory Bonus
- STCG Calculator (FY 2025-26)
- Step-up Basis Calculator
- Stock Options Tax Calculator
- Stock Split Calculator
- Stripe Fee Calculator
- Subscription Audit Calculator
- Sukanya Samriddhi Yojana (SSY)
- Summer Camp Cost Calculator
- Sweat Rate Calculator
- T1135 Foreign Property Calculator
- Tax Refund Spending Calculator
- Tax-Loss Harvesting Calculator
- Taxi vs Rideshare Calculator
- TCS on Foreign Remittance (LRS)
- Tea Steep Time Calculator
- Texas Hold'em Pre-Flop Odds
- Text Case Converter
- Text Emoticons
- Text Repeater
- Text Symbols
- Text to Binary Converter
- Text to Decimal Converter
- Text to Hex Converter
- Thanksgiving Turkey Size Calculator
- TikTok Creator Fund Calculator
- Time Calculator
- Time Card / Timesheet Calculator
- Timestamp
- Tip Pool Calculator
- Tournament Bracket Calculator
- Towing Capacity Calculator
- Train vs Fly Calculator
- Travel Points Value
- Tree Pruning Time Calculator
- TSA PreCheck vs Global Entry
- TypeScript Formatter
- Uber/Lyft Driver Earnings
- UK NHS Alcohol Units Calculator
- URL Parser
- US College Affordability Matcher 2026
- US Estate Tax Calculator
- User Agent Parser
- UV Index + Sunscreen Calculator
- Variable Withdrawal (VPW)
- VAT Calculator
- VDOT Running Calculator (Daniels)
- Vegetable Garden Yield Calculator
- Verify Timestamp
- Vesting Schedule Calculator
- Vitamin B12 Calculator
- Vitamin D Dose Calculator
- Water Heater Cost Calculator
- Watts to Amps Calculator
- Wedding Photographer Cost Calculator
- Weeks Between Two Dates Calculator
- Weight Loss Plateau Calculator
- Wind Chill Calculator
- Wingdings Translator
- Word Finder
- XML Formatter
- XML to JSON Converter
- YAML Formatter
- YouTube Revenue Calculator
- π Pi Memorization
Generator57
Producing one off sample data fast.
- 🎨 Color Palette Generator
- Barcode Generator
- Bcrypt Password Hash Generator
- Bold Text Generator
- Book Title Generator
- Bubble Text Generator
- Character Name Generator
- Cover Letter Generator
- Cron Expression Generator
- CSS Gradient Generator
- Essay Title Generator
- Fortune Cookie Generator
- Hash Generator
- HTTP Basic Auth Header Generator
- Invisible Character Generator
- Lenny Face Generator
- Lorem Ipsum Generator
- Paper Generator
- Password Generator
- Poem Title Generator
- Pokemon Name Generator
- Random Address Generator
- Random Adjective Generator
- Random Color Generator
- Random Country Flag Generator
- Random Country Generator
- Random Date Generator
- Random Emoji Generator
- Random IP Address Generator
- Random Last Name Generator
- Random Letter Generator
- Random MAC Address Generator
- Random Month Generator
- Random Movie Generator
- Random Name Picker
- Random Noun Generator
- Random Number Generator
- Random Password Generator
- Random Port Number Generator
- Random Sentence Generator
- Random String Generator
- Random Token Generator
- Random US State Generator
- Random Verb Generator
- Random Word Generator
- Random Year Generator
- RSA Key Pair Generator
- Schema Markup Generator
- Small Caps Generator
- Strikethrough Text Generator
- Strong Password Generator
- Superscript & Subscript Generator
- Text Hash Generator (MD5, SHA-1, SHA-256, SHA-384, SHA-512)
- URL Slug Generator
- UUID Generator
- Yes or No Generator
- YouTube Title Generator
Personal Finance72
Household budgeting and money decisions.
- 50/30/20 Budget Rule Calculator
- Abgeltungssteuer Calculator
- After-Tax Cost of Debt Calculator
- AI Contextual DTI Optimizer
- APR vs APY Calculator
- APR vs Effective Yield
- APY Calculator
- Babysitter Cost Calculator
- BNPL & Subscription Liability Forecaster
- Brutto-Netto Rechner
- Canada Childcare Expense Deduction
- Carpool Savings Calculator
- Concert / Festival Budget Calculator
- Corporate Tax Calculator
- CPF Calculator
- CPF LIFE Calculator
- Credit Card Rewards ROI Calculator
- Debt Payoff Calculator (Snowball/Avalanche)
- Debt Snowball / Avalanche Calculator
- Education Loan EMI
- Einkommensteuer Calculator
- End-of-Service Gratuity
- Engagement Ring Budget Calculator
- Erbschaftsteuer Calculator
- Expense Ratio Impact
- Family Benefits Calculator
- Freelance Hourly Rate Calculator
- Fuel Savings Calculator
- Gas Savings Calculator
- Grocery Budget Calculator
- Halloween Candy Budget Calculator
- Honeymoon Budget Calculator
- Hourly to Salary Converter
- Hours of Work per Item Calculator (Big Mac Index style)
- India Credit Card Picker Quiz 2026
- India CTC to In-Hand Salary Decoder
- India to Abroad Scholarship + Loan Matcher 2026
- Kids Allowance Calculator
- Krankenversicherung Calculator
- Loan Eligibility Calculator
- Loud Budgeting Social Goal Tracker
- Mehrwertsteuer (VAT)
- Personal Loan EMI
- RDSP Disability Savings Calculator
- Rentenrechner
- Riester Rente Calculator
- Salary After Tax Calculator
- Salary Calculator
- Salary Needed to Afford X Calculator
- Salary to Hourly Converter
- Singapore BSD + ABSD
- Singapore GST
- Singapore Income Tax
- Singapore Mortgage Calculator
- Singapore Salary Calculator
- SRS Calculator
- Take Home Salary Calculator
- Tax Bracket Calculator
- Tax Bracket Creep
- TDSR & MSR Calculator
- Tip Calculator
- Tip Calculator Pro (Split Bill)
- UAE End of Service Benefit
- UAE End-of-Service Gratuity Calculator
- UAE Golden Visa Eligibility Checker 2026
- UAE Mortgage Calculator
- UAE Personal Loan Calculator
- UAE Salary Calculator
- UAE VAT Calculator
- Wedding Ring Budget Calculator
- Work From Home Savings
- WPS Calculator
Math68
Homework, quick maths, and verification.
- Area Calculator
- Aspect Ratio Calculator
- Binary Encoder / Decoder
- Binary to Hex to Decimal to Octal Converter
- Binary to Octal Converter
- Binary to Text Converter
- Binary/Decimal/Hex Converter
- Body Water Percentage Calculator
- Chi-Square Calculator
- Circle Calculator
- Coffee Water Ratio Calculator
- Color Contrast Ratio (WCAG)
- Combinations + Permutations (nCr, nPr)
- Combinations Calculator C(n,k)
- Cone Volume Calculator
- Confidence Interval Calculator
- Correlation Coefficient
- Cylinder Volume Calculator
- Debt-to-Income (DTI) Calculator
- Discount Percentage Calculator
- Ellipse Area Calculator
- Email Subject Tester
- Factorial Calculator (n!)
- Fraction Calculator
- GCF & LCM Calculator
- Great Circle Distance
- Hex / Binary / Decimal Converter
- Hex Encoder / Decoder
- Hex to HSV Converter
- Hex to RGB Converter
- Hex to Text Converter
- Hexadecimal to Binary Converter
- Lightning Distance Calculator
- Logarithm Calculator
- Marinade Ratio Calculator
- Mean Median Mode Calculator
- Optimal Screen Distance
- Paint Mixing Ratio Calculator
- Parallelogram Area Calculator
- Pearson Correlation Calculator
- Percentage Calculator
- Percentage Change Calculator
- Permutation & Combination
- Permutations Calculator P(n,k)
- Pool Volume Calculator
- Pyramid Volume Calculator
- Pythagorean Theorem Calculator
- Quadratic Equation Solver
- Ratio + Proportion Calculator
- Ratio Calculator
- RGB to Hex Converter
- Rice Water Ratio Calculator
- Right Triangle Calculator
- Roman Numeral Converter
- Scientific Notation Converter
- Speed Distance Time Calculator
- Speed of Light Calculator
- Sphere Volume + Surface Area
- Standard Deviation
- T-Test Calculator
- Trapezoid Area Calculator
- Triangle Area Calculator
- Triangle Calculator
- Volume Calculator
- Waist-to-Height Ratio Calculator
- Waist-to-Hip Ratio Calculator
- Weighted Average Grade Calculator
- Z-Score Calculator
Investing & FIRE80
Long horizon planning and retirement targets.
- 4% Rule Safe Withdrawal
- 401(k) Calculator
- 401(k) Employer Match Calculator
- 401(k) vs Roth IRA: Pre-tax 401(k) vs after-tax Roth IRA - which retirement account wins for US savers?
- 401(k) vs Traditional IRA: Workplace plan vs your own IRA - higher limits or more flexibility?
- 529 College Savings Calculator
- Annuity Payout Calculator
- Annuity vs Lump Sum Calculator
- Asset Allocation Calculator
- Backdoor Roth Calculator
- Barista FIRE Calculator
- Bond Ladder Calculator
- Bond Yield Calculator
- Bond YTM Calculator
- CAGR Calculator
- Canada Capital Gains Inclusion Calculator
- Capital Gains Calculator
- Coast FIRE Calculator
- Compound Interest Calculator
- CPP Retirement Benefit Calculator
- Dividend Discount Model
- Dividend Reinvestment Calculator
- Dividend Yield Calculator
- Early Retirement (FIRE) Calculator
- Emergency Fund
- EMI vs SIP Calculator
- EPF Calculator
- ETF vs Mutual Fund: Same underlying index, different wrappers - which actually keeps more of your money?
- Fat FIRE Calculator
- FHSA Calculator
- FIRE Calculator
- FIRE Number Calculator (25× rule)
- India Capital Gains Tax Calculator (STCG & LTCG)
- India Mutual Fund Picker Quiz 2026
- Inflation-Adjusted Retirement
- Inherited IRA RMD
- International FIRE Calculator (8 countries)
- IRA Calculator
- ISA Calculator
- ISA vs SIPP: Flexible tax-free ISA vs locked-up tax-relief SIPP - which UK wrapper wins?
- Junior ISA Calculator
- Lean FIRE Calculator
- Lumpsum Calculator
- Mega Backdoor Roth
- Monte Carlo Retirement
- Mutual Fund Returns Calculator
- Mutual Fund vs Direct Stocks: Diversified index fund SIP vs picking your own stocks - which actually builds more wealth?
- NPS Calculator
- P/E Ratio Calculator
- Pension Calculator
- Pension vs Lump Sum
- PPF Calculator
- PPF vs EPF: Two government-backed Indian retirement funds - which one builds more wealth?
- PPF vs Fixed Deposit: Tax-free 7.1% PPF or 7-8% fixed deposit with TDS - which actually puts more in your pocket?
- PPF vs NPS: Guaranteed 7.1% vs market-linked 10-12% - which retirement saver wins for India?
- Retirement Calculator
- Retirement Corpus
- Retirement Corpus Needed Calculator
- Retirement Shortfall Calculator
- Retirement Tax Bracket Calculator
- Roth IRA Calculator
- Roth IRA vs Traditional IRA: Same $7,000 limit, opposite tax treatments - which builds more retirement wealth?
- Roth vs Traditional 401(k)
- RRSP Calculator
- RRSP vs FHSA: First Home Savings Account combines RRSP-deduction with TFSA-withdrawal - is it strictly better?
- RRSP vs TFSA: Pre-tax RRSP or post-tax TFSA - the right Canadian retirement bucket depends on your bracket.
- Rule of 72 Calculator
- Safe Withdrawal Rate Calculator
- Savings Goal Calculator
- SEP-IRA Calculator
- SIP Calculator
- SIP vs Lumpsum: Rupee-cost averaging or all-in at once? The historical answer surprises most investors.
- Solo 401(k) Calculator
- Step-up SIP Calculator
- SWP Calculator
- SWP vs Annuity: Rs 1 crore at 60 - draw 6%/yr from your mutual funds (SWP) or buy a 6.5% lifetime annuity?
- TFSA Calculator
- Traditional IRA Calculator
- Treasury Bond Yield Calculator
- US Work Visa Eligibility Checker (H-1B/O-1/EB-2/EB-1A)
Real Estate29
Buy versus rent, refinance, affordability checks.
- 🇮🇳 India Real Estate LTCG with Section 54 Exemption
- 1% Rule Rental Property Calculator
- 1031 Exchange Calculator
- 28/36 Rule Mortgage DTI Calculator
- Auto Refinance Calculator
- Balloon Mortgage Calculator
- Bi-Weekly Mortgage Calculator
- BRRRR Calculator
- Buy vs Rent Break-Even
- Canada Mortgage Stress Test Calculator 2026
- Cap Rate Calculator
- Cash-on-Cash Return Calculator
- Cash-Out Refinance vs HELOC: Need $50K for a home reno - reset your whole mortgage or open a second-lien HELOC?
- Down Payment Savings Calculator
- HOA Fee Impact Calculator
- Home Affordability Calculator
- Hyper-Local Home Affordability AI
- Mortgage Affordability Calculator
- Mortgage Amortization Table
- Mortgage Extra Payment Calculator
- Mortgage Points Calculator
- Mortgage Recast Calculator
- Mortgage Refinance Break-Even
- Property Tax Calculator
- Real Estate Agent Commission
- Rent Affordability Calculator
- Rent vs Buy
- Rental Property ROI Calculator
- Stamp Duty Calculator
Conversions34
Unit conversion in technical work.
- AED Currency Converter
- Astronomical Unit (AU) Converter
- Audio to MP3
- Celsius ↔ Fahrenheit Converter
- Celsius to Fahrenheit Converter
- Convert Now vs Don't Convert: Pay tax today at 22% or wait and pay tax at 28% on a much larger balance - the Roth conversion math.
- Currency Converter
- Date and Time Converter
- Feet to Meters Converter
- Forex Currency Converter
- Funnel Conversion Calculator
- Hex to CMYK Converter
- Image to JPG
- Image to PDF Converter
- Image to PNG
- Image to WebP
- JPG to PDF
- Kelvin ↔ Celsius Absolute Temperature Converter
- Kilograms ↔ Pounds Converter
- Lakh / Crore ↔ Million / Billion
- Miles ↔ Kilometers Converter
- MP3 to MP4
- MP4 to MP3
- PNG to WebP Converter
- Precise Celsius ↔ Fahrenheit Temperature Converter
- Precise Inches ↔ Centimeters Converter
- Precise Kilograms ↔ Pounds Converter
- Roth Conversion Calculator
- Roth Conversion Ladder
- Temperature Quick Converter
- Unit Converter
- Video to MP4
- Word to PDF
- Yeast Conversion Calculator
Files & Media51
Lightweight file or media work in the browser.
- AI Image to Prompt
- Audio Bitrate Calculator
- Audio Merge
- Audio Speed
- Audio Trim
- Background Remover
- Boost Volume
- Depth of Field Calculator
- EXIF and Metadata Remover
- Extract Pages
- Frame Rate / Frame Time
- Image Blur
- Image Compressor
- Image Crop
- Image Cropper (Aspect Ratio Presets)
- Image Flip
- Image Resize
- Image Resizer
- Image Rotate
- Image to Base64
- Image to Text (OCR)
- Image Upscale
- Image Watermark
- Merge Images
- Open Graph Image Resizer (1200 x 630)
- PDF Compress
- PDF Merge
- PDF Protect
- PDF Rotate
- PDF Split
- PDF to Image Converter
- PDF to Word Converter
- PDF Unlock
- PDF Watermark
- Photography Exposure Calculator
- QR Code Capacity Calculator
- QR Code Generator
- Remove Background
- Resize Image to 100 KB
- Resize Image to 20 KB
- Resize Image to 200 KB
- Resize Image to 50 KB
- RSU vs ISO Comparison
- UPI QR Code Generator
- Video Crop
- Video File Size Calculator
- Video Flip
- Video Merge
- Video Resize
- Video Rotate
- Video Trim
UK Finance35
A focused, single task calculation.
- 2026/27 UK PAYE Bands
- 2027/28 - projected UK PAYE Bands
- Council Tax Calculator
- Dividend Tax Calculator
- ISA Calculator
- Lifetime ISA Calculator
- National Insurance Calculator
- PAYE Income Tax Calculator
- Pension Calculator
- SIPP Calculator (2025/26)
- Stamp Duty (SDLT) Calculator
- UK Buy-to-Let Calculator
- UK Capital Gains Tax
- UK Energy Bill + EPC Calculator
- UK Inheritance Tax (IHT)
- UK ISA Growth Calculator
- UK Late Tax Filing Penalty Calculator
- UK Lifetime ISA (LISA) Calculator
- UK National Insurance Calculator
- UK PAYE Calculator
- UK Pension Annual Allowance
- UK Pension Drawdown Calculator
- UK Pension Tax Relief Calculator
- UK Salary Calculator
- UK SDLT Non-Resident + Second Home Calculator (2026)
- UK SDLT Stamp Duty Calculator
- UK SIPP Retirement Calculator
- UK SIPP vs ISA vs LISA Decision Quiz 2026
- UK Skilled Worker Visa Eligibility Checker 2026
- UK State Pension Forecast
- UK Student Loan Repayment Calculator
- UK TV Licence Calculator
- UK VAT Threshold Calculator
- UK Workplace Pension Calculator
- VAT Calculator
US Finance29
A focused, single task calculation.
- 2026 IRS Federal Tax Brackets
- 2027 IRS Federal Tax Brackets
- 401(k) Calculator
- 401(k) Rollover Penalty Avoidance Planner
- AI-Assisted Zero-Based Budget Allocator
- Bonus Tax Calculator
- Federal Income Tax Calculator
- Freelancer Income Volatility Smoother
- Gas Tax Holiday Savings Calculator
- High-Interest Rate Dilemma Solver (Pay Debt vs. Invest)
- IRA Calculator (Roth vs Traditional)
- Multi-Generational Wealth Transfer Simulator
- Property Tax Estimator (2025)
- Refinance Break-Even Calculator
- Self-Employment Tax (2025)
- Single-Parent Childcare & Tax Credit Maximizer
- Social Security Estimator
- State Sales Tax Calculator
- Tech Employee RSU & Stock Options Simulator
- US Alternative Minimum Tax (AMT) Calculator 2026
- US Backdoor Roth IRA Calculator
- US Capital Gains Tax
- US Capital Gains Tax Calculator
- US Expat Tax Calculator (FEIE + FTC)
- US FSA Calculator
- US Late Tax Filing Penalty Calculator
- US Roth vs Traditional 401(k) Quiz 2026
- US Salary Calculator
- W-4 Withholding Estimator
Health & Medical36
Personal health metric estimation.
- 😴 Sleep Cycle Calculator
- A1C to Blood Glucose Calculator
- Adult Height Predictor
- Amoxicillin Pediatric Dosage Calculator
- Anion Gap Calculator
- Blood Alcohol (BAC) Calculator
- Blood Pressure Calculator
- BMI Calculator
- BMI vs Body Fat Comparison
- BMR Calculator
- Body Fat 3-Site Skinfold Calculator
- Body Fat Calculator
- Body Fat Percentage Calculator (Navy)
- Body Surface Area Calculator
- Bone Mass Calculator
- Calorie Calculator (BMR & TDEE)
- Calorie Deficit Calculator
- Calories Burned Running Calculator
- Calories Burned Walking Calculator
- Child-Pugh Score Calculator
- Cholesterol Ratio Calculator
- Creatinine Clearance (Cockcroft-Gault)
- eGFR Calculator (CKD-EPI 2021)
- Exercise Calorie by Activity
- Hiking Calorie Calculator
- Ideal Body Weight Calculator (Devine)
- Kids BMI Percentile Calculator
- Lean Body Mass Calculator
- Pediatric Medication Dosage
- Period Tracker Calculator
- Protein Intake Calculator
- Sleep Debt Calculator
- Smoothie Calorie Calculator
- Streaming Bundle vs Individual
- TDEE Calculator (Mifflin-St Jeor)
- Water Intake Calculator
Construction31
Estimating jobs before ordering materials.
- Acres to Square Feet Converter
- Air Purifier Sizing (CADR)
- Attic Insulation R-Value
- Bathroom Remodel Cost Calculator
- Brick Quantity Calculator
- Concrete Bag Calculator
- Concrete Calculator
- Concrete Volume Calculator
- Deck Cost Calculator
- Deck Stain Calculator
- Drywall Calculator
- Fence Cost Calculator
- Firewood Cord Calculator
- Floor Tile Cost Calculator
- Gravel Calculator
- Gutter Installation Cost Calculator
- Infant Growth Percentile Calculator
- Kitchen Remodel Cost Calculator
- Lumber Board Feet Calculator
- Paint Coverage Calculator
- Rebar Calculator
- Rebar Spacing Calculator
- Roofing Square Calculator
- Septic Tank Size Calculator
- Siding Cost Calculator
- Stair Calculator
- Stair Stringer Calculator
- Tile Calculator
- Tile Grout Calculator
- Wallpaper Roll Calculator
- Wire Ampacity Calculator
Sport & Fitness33
Training plan and race pacing.
- 1RM Calculator (Epley & Brzycki)
- Basketball Efficiency Rating
- Bicep Curl 1RM Calculator
- Bicycle Cadence Calculator
- Bike Frame Size Calculator
- Bowling Average Calculator
- Calories Burned Cycling Calculator
- Climbing Grade Converter
- Cycling FTP Power Zones
- Cycling Power-to-Weight Calculator
- Golf Handicap Calculator
- Gym vs Home Gym Calculator
- Heart Rate Zones Calculator
- Marathon Fueling Calculator
- Marathon Pace Calculator
- Motorcycle Fuel Calculator
- NFL Passer Rating
- One Rep Max (1RM)
- Pace Calculator
- Powerlifting Wilks Score
- Race Time Predictor (Riegel)
- Rowing Pace Calculator
- Running Cadence Calculator
- Running Pace Calculator
- Sprint Power Calculator
- Swim Pace Calculator
- Swimming CSS Pace Calculator
- Swimming Pace Calculator
- Swimming Stroke Rate Calculator
- Tennis Elbow Rest Calculator
- VO2 Max Calculator (Cooper + Rockport)
- Watts per kg Cycling Calculator
- Wilks 2020 Score Calculator
Time & Date34
Scheduling, age, and elapsed time questions.
- ⏱️ Stopwatch
- ⏳ Countdown to Date
- 🌍 World Clock
- 🎂 Age Math Drill
- Add Days to Date Calculator
- Age Calculator
- Age Difference Between Two People Calculator
- Age Difference Calculator
- Age in Days Only Calculator
- Age in Days, Weeks, Months & Hours Calculator
- Age in Decimal Years Calculator
- Age in Hours Calculator (+ Heartbeats)
- Age in Months Only Calculator
- Age in Weeks Calculator
- Bitcoin Halving Countdown
- Countdown Timer
- Countdown to Event
- Date Calculator
- Days Between Dates
- Drainage Pipe Sizing Calculator
- Garage Door Cost Calculator
- Language Learning Time Calculator
- Leap Year Checker
- Medicare Advantage vs Original
- Printer Cost per Page
- Propane Tank Usage Calculator
- Running Mileage Base Calculator
- Seedling Start Date Calculator
- Sewing Fabric Yardage
- Sleep Need by Age Calculator
- Stock Average Calculator
- Time Zone Converter
- Voltage Divider Calculator
- Working Days Calculator
Brewing19
Home and craft brewing recipe design.
- ABV Calculator (Brewing)
- Boil-Off Rate Calculator
- Brewhouse Efficiency Calculator
- Carbonation Calculator (Brewing)
- Cider ABV Calculator
- Dry Hop Calculator (Brewing)
- Fixed Deposit vs Recurring Deposit: Lump-sum FD or monthly RD - which gets you a bigger maturity on the same total contribution?
- Force Carbonation Calculator
- Hop Utilization Calculator (Tinseth)
- IBU Calculator (Brewing)
- Mash pH Calculator (Brewing)
- Mead ABV Calculator
- Net Worth Calculator
- RRSP Contribution Room Calculator
- Sparge Water Calculator (Brewing)
- SRM Color Calculator (Brewing)
- Strike Water Calculator (Brewing)
- Wine ABV Calculator
- Yeast Pitch Rate Calculator (Brewing)
Canada Finance17
A focused, single task calculation.
- Canada CPP Calculator
- Canada Dividend Tax Credit Calculator
- Canada Income Tax
- Canada RRIF Calculator
- Canada RRSP Calculator
- Canada Salary Calculator
- Canada Sales Tax (HST/GST/PST) Calculator
- Canada TFSA Calculator
- CPP Retirement Calculator
- FHSA Calculator
- GST/HST Calculator
- Land Transfer Tax Calculator
- OAS Calculator
- RESP Calculator
- RRSP Calculator
- RRSP vs TFSA vs FHSA Decision Quiz (Canada 2026)
- TFSA Calculator
Business & SaaS22
Founders sizing SaaS or service businesses.
- Ad Spend ROI Calculator
- Amazon FBA Fee Calculator
- ARR / MRR Calculator
- Break-Even Calculator
- CAC Calculator (SaaS)
- Churn Rate Calculator
- CTR / CPC / CPA Calculator
- Customer LTV Calculator (SaaS)
- Dropshipping Profit Calculator
- Fix and Flip ROI Calculator
- Freelancer Rate Calculator
- Home Warranty Calculator
- IRR Calculator
- Loan-to-Value (LTV) Calculator
- NPV Calculator
- Profit Margin Calculator
- ROI Calculator
- Runway Calculator (Startup)
- Solar Panel ROI Calculator
- SS Break-Even Claim Age
- Whole Life Insurance IRR Calculator
- XIRR Calculator
Australia Finance14
A focused, single task calculation.
- Australia HECS-HELP Calculator
- Australia Income Tax Calculator
- Australia Salary Calculator
- Australia SkillSelect Points Calculator (189/190/491)
- Australia Superannuation Calculator
- Australian FHSS Calculator (First Home Super Saver)
- Australian GST Calculator
- Australian Income Tax
- CGT Discount Calculator
- HECS-HELP Repayment
- Negative Gearing Calculator
- NSW Stamp Duty Calculator
- Salary Sacrifice Calculator
- Super Calculator
Writing & Text19
Editing, formatting, and writing checks.
- 🔤 Anagram Solver
- camelCase Converter
- Character Counter
- Flesch Reading Ease Calculator
- Flesch-Kincaid Readability Calculator
- Font Size Readability
- Lowercase Converter
- Markdown Editor / Preview
- Markdown Formatter
- Markdown to HTML Converter
- Paragraph Counter
- Reverse Text
- Sentence Counter
- snake_case Converter
- Text Character Counter
- Text Diff / Compare
- Title Case Converter
- Uppercase Converter
- Word Counter
Auto16
Buying or financing a vehicle.
- Auto Loan Calculator
- Auto Loan Payoff vs Invest
- Boat Fuel Calculator
- Car Affordability (20/4/10)
- Car Depreciation Calculator
- Car Loan EMI
- EV Charging Time Calculator
- EV Range Calculator
- Lease vs Buy Car Calculator
- Lease vs Buy: Lower monthly payment vs ownership and equity - which one is actually cheaper over 10 years?
- MPG / Fuel Economy Calculator
- Road Trip Cost Calculator
- RV MPG + Fuel Cost Calculator
- Tire Pressure Converter
- Tire Size Calculator
- Total Cost of Ownership Calculator
Insurance14
Sizing coverage and comparing quotes.
- Car Insurance Deductible Optimizer
- Disability Insurance Calculator
- Disability Insurance Needs Calculator
- HDHP vs PPO Calculator
- Health Insurance Estimator
- Insurance Premium Calculator
- Life Insurance Needs (DIME)
- PPO vs HMO vs HDHP+HSA Picker 2026 (US)
- Renters Insurance Calculator
- Term Insurance Cover
- Term Insurance vs Whole Life Insurance: Cheap protection vs lifetime cash value - which is actually right for your family?
- Term vs Whole Life Insurance
- Term vs Whole Life Insurance Picker 2026 (5 countries)
- Umbrella Insurance Calculator
Dev14
Code formatting and quick developer tasks.
Cooking13
Recipe scaling and substitutions.
- Baking Cup to Gram
- Baking Temperature Converter
- BBQ Rub Recipe Calculator
- Coffee Aeropress + Espresso Calculator
- High Altitude Baking Adjustment
- Meat Cooking Time Calculator
- Online Course Pricing Calculator
- Oven Temperature Converter
- Pickle Brine Calculator
- Pizza Dough Calculator (Baker's %)
- Pour Over Coffee Calculator
- Recipe Scaling Calculator
- Sourdough Hydration Calculator
Physics12
Homework, lab prep, and engineering sanity checks.
Garden10
Personal projects and side activities.
Hobby10
Personal projects and side activities.
Games14
Quick games and brain training in the browser.
India Finance13
A focused, single task calculation.
- 🇮🇳 India Cost Inflation Index (CII) Indexation Calculator
- 🇮🇳 India Home Loan Tax Benefit Calculator
- 🇮🇳 Mutual Fund SWP Calculator (Systematic Withdrawal Plan)
- 🇮🇳 Senior Citizen Savings Scheme (SCSS) Calculator
- 2026 India New Tax Regime Slabs
- 2026 India Old Tax Regime
- 2027 India New Tax Regime Slabs
- 2027 India Old Tax Regime
- India Home Loan Eligibility Calculator 2026
- India Late ITR Filing Penalty Calculator
- India Old vs New Regime Quiz (FY 2025-26)
- India Personal Loan Eligibility Calculator 2026
- TDS on Salary Calculator
Lifestyle8
Personal habit and lifestyle math.
Pregnancy8
Personal health metric estimation.
Crypto6
Trade sizing and crypto tax estimation.
Loans & Debt33
A focused, single task calculation.
- 15-Year Mortgage vs 30-Year Mortgage: Pay double the monthly to save hundreds of thousands in interest - the home loan math most buyers ignore.
- 15-Year vs 30-Year Mortgage Decision Quiz 2026
- 401(k) Loan Calculator
- Amortization Schedule
- ARM vs Fixed Mortgage Calculator
- Australian Mortgage Calculator
- Balance Transfer Calculator
- Bridge Loan Calculator
- Buy Now, Pay Later (BNPL) vs Credit Card Calculator
- Canada Home Buyers Plan (HBP) Calculator
- Canada Mortgage Calculator
- Canadian Mortgage Calculator
- Cash-Out Refinance Calculator
- Closing Cost Calculator
- Credit Card Min Payment Trap
- Credit Card Payoff Calculator
- Hard Money Loan Calculator
- HELOC Calculator
- Home Equity Calculator
- Home Loan EMI Calculator
- Interest-Only Loan Calculator
- Loan Prepayment Calculator
- Mortgage Calculator
- Mortgage Calculator (Baufinanzierung)
- Mortgage Payment Calculator (PITI)
- Piggyback Loan (80-10-10) Calculator
- PMI Calculator
- Reverse Mortgage Calculator
- Student Loan IDR Calculator
- Student Loan Refinance
- UK Mortgage Affordability Calculator 2026 (4.5x LTI)
- US Mortgage Pre-Qualification Calculator 2026
- US Student Loan Repayment Calculator
Career11
Household budgeting and money decisions.
- Comfortable Living Salary by City 2026 (16-City Calculator)
- Cost of Living Comparison
- Deferred Compensation Calculator
- Exam Grade Needed
- Final Grade Calculator
- Freelancer Go/No-Go Decision Calculator (8 countries)
- GPA Calculator
- Job Offer Comparison Calculator
- Multi-Country Job Offer Comparator 2026
- Resume Builder + ATS Score
- Should I Take This Raise? Calculator 2026