Waist to hip ratio:
Health experts recommend a waist to hip ratio (WTH) of 1.0 or less in men, and 0.9 or less in women.
Waist to Hip Ratio Chart
Calculate your waist to hip ratio for men or women using the waist to hip ratio calculator and compare your results against the chart below. The values vary be gender so make sure to check your result against the appropriate column.
| Gender | Male | Female |
|---|---|---|
| Low Risk | < 0.95 | < 0.80 |
| Some Risk | 0.96 - 1.00 | 0.81 - 0.85 |
| High Risk | > 1.00 | > 0.86 |
Table of Contents
Where you carry fat matters
Waist-to-hip ratio (WHR) captures fat distribution — specifically, the apple-shape vs pear-shape distinction. Apple-shape fat sits in the abdomen and around organs, where it actively contributes to disease risk. Pear-shape fat sits on hips and thighs, where it's largely metabolically inert. WHR is one of the simplest ways to tell which pattern you have.
How WHR is calculated
The simplest possible health metric:
WHR = Waist Circumference ÷ Hip Circumference
Both in the same unit (cm or inches; the units cancel).
Worked example using the calculator's defaults (86 cm waist, 106 cm hips, male):
- WHR = 86 ÷ 106 = 0.811
That falls in the "Low Risk" range for men (under 0.95 per WHO thresholds).
How to measure waist and hips correctly
WHR accuracy depends entirely on consistent measurement. Most amateur errors come from measuring in the wrong places.
Waist: midpoint between the bottom of your lowest rib and the top of your hip bone (iliac crest). Press into your side to feel the rib bottom, then feel for the hip bone; the waist measurement point is halfway between. For most people this is just above the navel, not at it.
Hips: the widest point around your buttocks, typically 7–9 inches below the waist measurement. Look in a mirror sideways to find the widest point.
Measurement protocol:
- Stand relaxed, feet together, weight evenly distributed.
- Remove or thin out clothing in the measurement zones — thick fabric distorts the reading.
- Breathe out normally; don't hold your stomach in or push it out.
- Wrap a flexible tape horizontally (use a mirror to check it's level around).
- Snug but not compressing skin.
- Take three measurements at each site; use the average.
Apple vs pear: why distribution matters
The same amount of body fat carries different health risk depending on where it sits:
- Apple-shape (higher WHR): fat concentrated in the abdomen, much of it visceral (around organs). Strongly linked to insulin resistance, type 2 diabetes, cardiovascular disease, hypertension, fatty liver disease, and several cancers. The fat actively secretes inflammatory cytokines and disrupts metabolic signaling.
- Pear-shape (lower WHR): fat concentrated in hips, buttocks, and thighs. Mostly subcutaneous and metabolically quieter. Carries far less cardiometabolic risk at the same total body fat level. Some research suggests pear-shape fat may even be protective for cardiovascular health.
This is why two people with identical BMIs can have very different disease risk profiles. WHR captures it; BMI doesn't. The shape you naturally tend toward is largely genetic, but dietary and lifestyle changes affect it — particularly stress reduction (cortisol drives visceral fat storage), strength training, and reducing refined sugars.
WHR vs WHtR vs BMI — when to use which
Three popular body shape metrics, each with strengths:
| Metric | What it measures | Best use |
|---|---|---|
| BMI | Total weight relative to height | Population screening; quick rough assessment |
| WHtR (waist/height) | Abdominal fat relative to body size | Best single-metric predictor of cardiometabolic risk |
| WHR (waist/hip) | Fat distribution pattern (apple vs pear) | Distinguishing fat distribution patterns |
For the clearest picture: use all three. BMI for context, WHtR for risk, WHR for shape. When they agree, you have high confidence in the assessment. When they disagree, the discrepancies are often informative — a normal BMI with a high WHR (apple-shape skinny) carries different risk than a high BMI with a low WHR (muscular pear).
How WHR changes with diet and lifestyle
Unlike leg-to-body ratio (which is skeletal and fixed), WHR responds to lifestyle changes within weeks to months:
- Calorie deficit: visceral fat tends to be among the first fat lost in a deficit, so WHR usually improves faster than total body weight changes.
- Strength training: builds gluteal and leg muscle (increasing hip measurement) while abdominal muscle development changes waist circumference modestly. Net effect typically lowers WHR.
- Stress management: chronic high cortisol promotes visceral fat storage. Sleep, stress reduction, and aerobic exercise lower cortisol over time.
- Sugar/refined carb reduction: visceral fat is particularly responsive to dietary sugar load. Reducing it often shows up as waist circumference reduction before scale weight changes.
Track WHR monthly rather than weekly — like all body composition measures, it has measurement noise that exceeds week-to-week real change.
Sources & references
- World Health Organization — Obesity and Overweight — WHO thresholds for WHR and other body composition measures.
- WHO Waist Circumference and Waist-Hip Ratio Report — detailed methodology and population data.
- Ashwell M et al. (2014). "Waist-to-height ratio is more predictive of years of life lost than body mass index." PLOS One 9(9): e103483 — comparison of body composition metrics as health predictors.
FAQs
Waist: midpoint between the bottom of your lowest rib and the top of your hip bone (iliac crest) — usually just above the navel, not at it. Hips: the widest point around your buttocks, typically 7–9 inches below your waist. Stand relaxed with feet together, breathe out normally, and keep the tape horizontal. Don't pull the tape tight, don't measure over thick clothing, and don't hold your stomach in. Take three measurements and average them.
Apple shape stores fat in the abdomen (higher WHR). Pear shape stores it in hips and thighs (lower WHR). The distinction matters for health: apple-shape fat is primarily visceral (around organs), which is metabolically active and associated with higher disease risk. Pear-shape fat is primarily subcutaneous and carries lower cardiometabolic risk. Genetics largely determines which shape you tend toward, but everyone has some control through diet and exercise.
Because typical body fat distribution differs by sex due to hormonal factors. Premenopausal women tend to store fat in hips and thighs (lower WHR); men and postmenopausal women tend to store more in the abdomen (higher WHR). The WHO healthy thresholds reflect this: under 0.90 for men, under 0.85 for women. The risk relationship is consistent across sexes — higher WHR predicts higher risk — but the absolute thresholds differ.
Yes — and this is one of the reasons WHR is useful. Body fat redistribution happens even at stable weight, especially with strength training, aging, and changes in stress/hormones. Someone could maintain the same weight but lose abdominal fat and gain hip/thigh muscle, dropping their WHR meaningfully without the scale moving. WHR captures changes that weight alone misses.
Both have value. WHR is older and more research-validated; WHtR is simpler (only one comparison needed: waist vs height) and uses the universal "under 0.5" threshold across sexes. The Ashwell 2012 meta-analysis found WHtR slightly outperforms WHR as a single predictor of cardiometabolic risk. For full picture: combine both with BMI. They measure slightly different things — together they catch most cases.