About this tool
Waist-to-hip ratio (WHR) is a simple proxy for fat distribution. Visceral abdominal fat is far more dangerous than peripheral fat, so WHR predicts cardiovascular and metabolic risk better than weight or BMI alone.
How it works
Men: low under 0.90, moderate 0.90 to 1.00, high above 1.00
Women: low under 0.85, moderate 0.85 to 0.90, high above 0.90
Measure waist at the narrowest point above the navel and hips at the widest point around the buttocks. Use a relaxed exhale and a snug but non-compressing tape.
How to use the Waist to Hip Ratio Calculator
The Waist to Hip Ratio 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 Waist to Hip Ratio-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.
Frequently asked questions
What is a healthy waist to hip ratio?
WHO classifies men below 0.90 and women below 0.85 as low risk. Above 1.0 for men and 0.90 for women indicates substantially raised cardiovascular and metabolic risk.
How do I measure waist and hips correctly?
Measure waist at the narrowest point between ribs and hips, usually just above the navel. Measure hips at the widest point around the buttocks. Stand relaxed and exhale normally before reading the tape.
Is WHR better than BMI?
WHR captures fat distribution while BMI does not. Visceral abdominal fat is far more metabolically dangerous than peripheral fat, so WHR predicts heart disease and diabetes risk better than BMI in many populations.
Why is apple shape risky?
An apple shape (high WHR) means fat is stored around organs in the abdomen. This visceral fat releases inflammatory compounds and free fatty acids that drive insulin resistance, high blood pressure, and atherosclerosis.
Is the Waist to Hip Ratio Calculator accurate?
The Waist to Hip Ratio Calculator applies the standard formula for waist to hip ratio. 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 Waist to Hip Ratio 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.
Can I use the Waist to Hip Ratio 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 guidance.
How do I report a bug or suggest improvement to the Waist to Hip Ratio 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 and update calculators when rules or formulas change.
How accurate is the Waist to Hip Ratio 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 Waist to Hip Ratio 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.
Does the Waist to Hip Ratio Calculator work offline?
Yes. Once the page has loaded, it works without internet. The calculation runs in JavaScript on your device.
Can I share results from the Waist to Hip Ratio 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 waist to hip ratio 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.