How to use the waist-to-height ratio calculator
Assess central fat and health risk by comparing waist circumference with height. Enter waist circumference, height in the fields above; the waist-to-height ratio, risk guide are computed instantly and plotted on the chart so you can see how the answer changes.
Common searches this calculator answers include “waist to height ratio”, “central obesity”, “waist height risk”, “calculate waist-to-height ratio”, “find waist-to-height ratio”.
Formula
Variables
- waist — Waist circumference (cm)
- ht — Height (cm)
Worked example
With waist circumference = 85 cm, height = 170 cm, the calculator gives waist-to-height ratio ≈ 0.5; risk guide ≈ Higher risk (0.5 or above) text.
Frequently asked questions
What is the waist-to-height ratio calculator used for?
Assess central fat and health risk by comparing waist circumference with height. It helps with questions such as “waist to height ratio”, “central obesity”, “waist height risk”.
What is the formula for the waist-to-height ratio calculation?
Waist-to-height ratio = waist / ht. Risk guide (text) = [Waist-to-height ratio]<0.5?"Healthy range (below 0.5)":"Higher risk (0.5 or above)". Here waist is waist circumference (cm), ht is height (cm).
What inputs do I need for the waist-to-height ratio calculator?
You need waist circumference in cm, height in cm. Each field is pre-filled with a typical example so you can see how the result responds as you edit the numbers.
How do I use the waist-to-height ratio calculator?
Type values into the input fields. Results and the chart update instantly. Use Reset to restore the example values, Copy results to paste them elsewhere, or Share to copy a link that preserves your inputs.
Is the waist-to-height ratio result exact?
Calculations use standard formulas and double-precision arithmetic, then display about seven significant figures. Real-world measurements carry uncertainty, so treat results as estimates unless your inputs are exact.