About this Waist-to-Height Ratio Calculator
Waist-to-Height Ratio Calculator compares waist circumference with height and supports centimeters, inches, or feet-and-inches for height. A simple reference often used in public-health guidance is to keep waist circumference below half of height, but individual circumstances still matter.
Formula or method
Example
An 80 cm waist and 170 cm height gives a ratio of about 0.47.
Common uses
- Calculate WHtR without manually converting units.
- Compare a waist measurement with half of height.
- Use as one general screening measure alongside appropriate professional guidance.
How to use this tool
- Enter the values or text requested by the calculator.
- Choose units or options when the tool provides them.
- Select the calculation button and review the result.
- Use the formula, example and notes on this page to check whether the result fits your situation.
Important note
Use a consistent waist measurement method and treat the result as general screening information rather than a diagnosis.
Health reference
For general guidance on waist-to-height ratio and measuring your waist, see the NHS waist-to-height ratio guidance.
Frequently asked questions
What units can I use?
You can enter height in centimeters or feet and inches, and waist circumference in centimeters or inches.
Can this diagnose a health problem?
No. It is a general screening tool and does not diagnose medical conditions.