This waist to height ratio calculator finds your WHtR, a simple indicator of central obesity risk. Enter your waist and height in the same units above.
Formula
WHtR = Waist ÷ Height
Example
Waist 34″, height 70″: WHtR = 34 ÷ 70 = 0.49.
Guideline
Keeping your waist under half your height (WHtR below 0.5) is a common healthy target for many adults.
Important
This tool is for general educational purposes only and is not medical advice, diagnosis, or treatment. It does not replace evaluation by a qualified healthcare professional — consult one for any health decision. Last updated: August 2026.
Frequently Asked Questions
What is a healthy waist-to-height ratio?
Below 0.5 is a common healthy target — keep your waist under half your height.
How do I calculate waist-to-height ratio?
Divide your waist measurement by your height, using the same units for both.
Why use WHtR instead of BMI?
WHtR captures central (belly) fat, which is linked to health risk, and works across different body types.