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Waist-to-Hip Ratio Calculator: WHR Reference Tool

Calculate your waist-to-hip ratio and compare it with WHO waist-to-hip reference thresholds. WHR adds context about central body size, but it does not directly measure visceral fat or diagnose health risk.

Calculate Your WHR

Enter your waist and hip circumferences to calculate your ratio.

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The Science of Waist-to-Hip Ratio

1. Visceral vs. Subcutaneous Fat

WHR compares waist circumference with hip circumference. Higher waist size relative to hip size is associated with central fat distribution in population studies, but WHR cannot distinguish subcutaneous from visceral fat and should not be treated as a direct body-composition measurement.

2. WHO Clinical Standards and Ratios

The World Health Organization (WHO) report describes waist-to-hip thresholds used in population screening:

  • Men: A ratio of 0.90 or higher is commonly used as an abdominal-obesity screening threshold.
  • Women: A ratio of 0.85 or higher is commonly used as an abdominal-obesity screening threshold.

3. How WHR Complements BMI

BMI does not describe where body size is carried. WHR adds a waist-distribution measure that has been studied alongside BMI in cardiovascular research. Population findings should not be turned into an individual diagnosis.

WHO Waist-to-Hip Ratio Risk Classification

Reference categories used for WHR screening:

Risk CategoryMen's WHRWomen's WHRScreening Context
Below reference thresholdBelow 0.90Below 0.80Lower waist-to-hip screening category.
Intermediate0.90 - 0.990.80 - 0.84Near or above common screening thresholds.
At or above threshold1.00 or higher0.85 or higherHigher WHR screening category; interpret with broader health context.

How the Calculation Works

Asterisks Fit WHR calculations use the standard ratio and published measurement guidance:

Formula based on the published equation. Methodology reviewed by the Asterisks editorial team. Last content review: June 2025.
Last Updated: June 2026

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Frequently Asked Questions

Medical Disclaimer: Waist-to-Hip Ratio classifications are screening references. Individual health assessments must be conducted by a licensed healthcare provider. Full disclaimer →