OmniTools

Waist-to-Hip Ratio (WHR) Calculator

Evaluate waist-to-hip ratio, abdominal fat distribution (Apple vs Pear shape), and health risk levels.

Basis: WHO "Waist Circumference and Waist–Hip Ratio" report (2008)·2026-08-28 verified·Not reviewed by a medical professional·Editorial policy

Before you rely on this

The reading depends heavily on where you measure — at the navel versus midway between the lowest rib and the iliac crest — and again on whether you measure mid-breath. Compare only readings taken the same way on the same person.

Tool Overview & Key Purpose

Waist-to-Hip Ratio (WHR) evaluates abdominal fat distribution and identifies visceral obesity risks more accurately than BMI.

Step-by-Step Usage Instructions

1STEP 1

Select gender and preferred measurement unit (cm / in).

2STEP 2

Measure waist circumference around the narrowest part / navel area.

3STEP 3

Measure hip circumference around the widest section of the buttocks.

4STEP 4

Review calculated WHR, body shape classification (Apple vs Pear), and WHO risk tier.

Real-World Scenarios & Practical Cases

2 Practical CasesScenario #1

Identifying Normal-Weight Visceral Obesity (Skinny Fat)

A male with normal BMI 22.5 but waist 88cm / hip 90cm yields a WHR of 0.98, signaling elevated visceral fat levels.

Visceral abdominal fat poses higher cardiovascular risk than subcutaneous fat.Scenario #2

Postpartum Body Composition & Gynoid Assessment

A female WHR below 0.80 indicates pear-shaped fat distribution with optimal metabolic health markers.

WHR over 0.85 indicates android/apple-shaped fat accumulation.Waist-to-hip ratio formulaWHR = Waist Circumference ÷ Hip Circumference

Pro Tips & Key Considerations

Measure waist at the end of a normal exhale without squeezing skin tightly.WHO thresholds for high health risk: WHR ≥ 0.90 for men, WHR ≥ 0.85 for women.

Sources & References

WHO — Waist Circumference and Waist-Hip Ratio (Expert Consultation Report)Mayo Clinic — Fitness & Body Measurement Guide

Basis: WHO "Waist Circumference and Waist–Hip Ratio" report (2008) · 2026-08-28 verified