Waist-to-Height Ratio Calculator
Health
Express waist circumference as a fraction of height.
Formula
Ratio = waist / height
- Use the units shown beside each field.
- Results update automatically whenever you change an input.
- Displayed values use up to four decimal places, or scientific notation for very small or large numbers. Calculations retain full precision.
- Use the same measurement units. This ratio alone does not assess individual health.
Example Calculation
Example inputs
- Waist: 80 cm
- Height: 175 cm
An 80 cm waist and 175 cm height gives a ratio of 0.457.
Frequently asked questions
How do I use this calculator?
Enter waist, height. The result updates automatically. Use Reset to restore the example values.
What method does it use?
Ratio = waist / height. Use the same measurement units. This ratio alone does not assess individual health.
Why might a rounded result differ?
The calculation keeps full numeric precision internally, then rounds the displayed result. Rounding intermediate steps by hand can produce a slightly different answer.
Are my inputs saved online?
No. This calculator processes your inputs in your browser. A recently used list stores only calculator names on this device, not your entered values.
Check the assumptions and units before using this result. Read about calculation methods.