About
Click-through rate (CTR) = clicks/impressions. Industry avg: search 3-5%, display 0.5-1%, social 1-2%. CPC = cost-per-click ($1-3 typical). CPA = cost-per-acquisition (varies wildly). Conversion rate (CVR) = conversions/clicks. Critical for paid ads.
WordStream's 2025 Google Ads benchmarks (sampled across 17 industries and 17,000+ accounts) put the cross-industry search-network averages at 6.42% CTR, $4.66 CPC and $66.69 CPA. Legal and finance run materially higher CPC ($9-15) because keyword competition for "personal injury attorney" or "401k rollover" is fiercer than consumer goods. Display network CTR averages 0.46% with $0.67 CPC. Meta (Facebook + Instagram) reports a 2025 industry average of 1.51% CTR, $0.97 CPC and $19.68 CPA on lead-gen objectives. LinkedIn, the most expensive mainstream channel, sits at $5.39 average CPC and $90+ CPA for B2B leads. Funnel arithmetic compounds: 100,000 impressions × 2% CTR = 2,000 clicks; 2,000 clicks × 3% landing-page CVR = 60 leads; $1.50 CPC means $3,000 ad spend; CPA = $50.
Formula
Frequently asked questions
How accurate is the Marketing Funnel Calculator?
It applies the standard formula. Accuracy is limited only by your input precision. For decisions with material consequences (taxes, medical, legal, structural), use the result as a starting point and verify with a qualified professional in the relevant field.
Is the Marketing Funnel Calculator free to use?
Yes. 100% free, no signup, no payment, no API key. The site is funded by display ads around the tool but not inside the calculation flow.
Are my inputs saved anywhere?
No. All inputs stay in your browser tab. Closing the tab discards them. The site uses Google Analytics for traffic measurement (anonymized) but the analytics never see what you type into the form.
Can I use the Marketing Funnel Calculator on my phone?
Yes. The tool is responsive and tested on iOS Safari, Android Chrome, and major desktop browsers. Touch targets meet Apple's 44pt and Google's 48dp minimum.
Does the Marketing Funnel Calculator work offline?
Yes. Once the page has loaded, it works without internet. The calculation runs in JavaScript on your device.
How do I report a bug or suggest improvement to the Marketing Funnel Calculator?
Email hi@3tej.com with the URL of this page and a description of what you saw vs expected. We typically respond within 72 hours.
Can I share results from the Marketing Funnel Calculator?
Take a screenshot or copy the output. The page doesn't generate shareable URLs for specific calculations - inputs stay in your browser only.
Why are the results different from another marketing funnel tool?
Most likely: different formula assumptions, different default values, different rounding rules, or different applicable rates. Check the methodology if both tools document it. Both can be valid for different scenarios.
Is the Marketing Funnel Calculator accurate?
The Marketing Funnel Calculator applies the standard formula for marketing funnel. Accuracy is limited only by your input precision. For decisions with material consequences, use the result as a starting point and verify with a qualified professional or the relevant official source.
Is the Marketing Funnel Calculator free?
Yes. 100% free, no signup, no payment, no API key. The site is funded by display ads that appear around the tool but not inside the calculation flow.
Are my inputs saved?
No. Inputs stay in your browser tab. Closing the tab discards them. The site uses Google Analytics for traffic measurement (anonymized) but does not see what you type into the form.
What CTR / CPC / CPA should I aim for in my industry?
WordStream's 2025 Google Search benchmarks: Real Estate 9.7% CTR / $1.55 CPC; Dating 6.7% / $2.78; Legal 4.8% / $9.21; Finance 6.2% / $3.72; B2B 5.0% / $3.33; Apparel 8.6% / $1.41; Education 5.2% / $2.40. Beat the median by 25-50% before scaling spend; below median usually means the keyword theme or ad copy needs work, not more budget.
How does CPA relate to ROAS and LTV?
CPA is upstream of ROAS (Return On Ad Spend) and LTV (lifetime value). The standard breakeven test: target CPA must be less than gross margin per customer minus fulfilment cost. SaaS rule of thumb: keep blended CPA below one third of first-year ARR (or one twelfth of 3-year LTV, the classic "LTV:CAC of 3:1"). For ecommerce, a 4-6x ROAS is a healthy paid-search target after factoring product cost, returns and shipping.
How to use the Marketing Funnel Calculator
The Marketing Funnel Calculator is a browser-based tool that runs entirely on your device. Inputs you enter never reach a server - all calculations happen client-side in JavaScript. This means:
- Privacy: nothing is logged, sent, or stored by 3Tej. Inputs disappear when you close the tab.
- Speed: results update as you type. No network round trip.
- Offline use: once the page is cached, it works without internet.
- No signup: no account, no email, no rate limits.
Step by step
- Enter your inputs in the form above. Each field is labeled with its unit (currency, percent, kg, etc.) and the expected range.
- Read the result as it updates. The number reflects the formula commonly accepted in Marketing Funnel-related calculations.
- Adjust to see sensitivity: change one input at a time and watch how the output moves. This is the fastest way to understand which variable matters most.
- Copy or screenshot the result for later reference. The page state persists for the session if your browser allows it.
When you would use this
- Quick estimates: when you need a number now and don't want to open a spreadsheet.
- Sensitivity analysis: testing how a result changes as inputs vary, before committing to a real-world decision.
- Comparison: running the same calculation with different inputs to compare options side by side.
- Learning: building intuition for how the underlying math behaves.
- Documentation: capturing a snapshot of inputs and outputs at a point in time.