Waist-to-Height Ratio Calculator
Central obesity risk from waist and height.
Enter your values
Enter the waist circumference in cm.
Enter the height in cm.
Results update instantly as you type — no submit needed. Your values are remembered on this device, and the shareable link reopens the calculator with exactly these numbers.
- Waist-to-height ratio
- 0.5
- Category
- Increased risk
- Target waist (<0.5)
- 85 cm
Quick answer
A waist-to-height ratio above 0.5 is generally linked to increased cardiometabolic risk.
WHtR = waist / height
At a glance
| What it does | Central obesity risk from waist and height. |
|---|---|
| Category | Health |
| Inputs needed | Waist circumference, Height |
| Main output | Waist-to-height ratio |
| Formula | WHtR = waist / height |
| Cost | Free — no sign-up, no download |
How to use the Waist-to-Height Ratio Calculator
- 1Measure waist at the navel, standing relaxed.
- 2Divide by your height in the same units.
- 3This screens for risk only — discuss results with a clinician rather than self-diagnosing.
Inputs explained
- Waist circumference(cm)
- Enter the waist circumference in cm.
- Height(cm)
- Enter the height in cm.
Worked example
Using the values the calculator loads with:
Inputs
- Waist circumference85 cm
- Height170 cm
Results
- Waist-to-height ratio0.5
- CategoryIncreased risk
- Target waist (<0.5)85 cm
Frequently asked questions
Why not BMI?
WHtR tracks abdominal fat, which is more strongly linked to metabolic risk than BMI alone.
Same ratio for men and women?
The 0.5 threshold is commonly used for both sexes.
What do I need to enter into the Waist-to-Height Ratio Calculator?
Just 2 values: waist circumference, height. Every field starts with a realistic example, so you can change one number at a time and watch the result update instantly.
How does the Waist-to-Height Ratio Calculator work out the answer?
A waist-to-height ratio above 0.5 is generally linked to increased cardiometabolic risk. It applies the formula WHtR = waist / height and shows the working so you can check each step by hand.
Is the Waist-to-Height Ratio Calculator free, and do I need an account?
It is completely free with no sign-up, no download and no usage limit. Everything is calculated in your browser, so the numbers you type never leave your device.
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.