Waist-to-Hip Ratio (WHR) Calculator
Compute waist-to-hip ratio
Waist-to-hip ratio: quick guide
WHR compares central to lower-body fat distribution. Higher WHR suggests more abdominal (visceral) fat, which is more strongly linked to metabolic risk than BMI alone. Enter waist and hips in the same units; the ratio is unit-free.
How to measure
- Stand relaxed, exhale gently. Measure waist at the narrowest point (or just above the navel).
- Measure hips around the fullest buttock circumference.
- Keep the tape horizontal, snug but not compressing skin. Take 2 readings and average.
Interpreting WHR (WHO guidance)
- Women: Low risk ≤ 0.80, Moderate 0.81–0.84, High ≥ 0.85
- Men: Low risk ≤ 0.90, Moderate 0.91–0.99, High ≥ 1.00
Use WHR alongside BMI and waist-to-height ratio (WHtR). Central adiposity can be high even when BMI is “normal”.
Comparing WHR with BMI and WHtR
BMI estimates total size relative to height, but cannot distinguish between muscle, bone, and fat. WHtR focuses on waist circumference relative to stature, emphasizing central fatness. WHR, in contrast, expresses body shape by comparing abdominal size with hip girth.
Used together, these measures highlight different aspects of health risk. A person with a healthy BMI may still carry excess abdominal fat, revealed by a high WHR or WHtR. Conversely, athletes with high muscle mass may appear “overweight” by BMI but show healthy ratios.
WHR FAQs
Is WHR better than BMI?
They answer different questions. BMI estimates total size, while WHR highlights fat distribution. Using both (plus WHtR) gives a clearer picture.
What WHR is healthy?
Generally ≤0.80 for women and ≤0.90 for men is considered low risk; see thresholds above.
Does height affect WHR?
No. WHR is a ratio of two circumferences in the same units.
How often should I measure?
Weekly or bi-weekly is typical. Measure under similar conditions (time of day, posture, clothing).
Why is abdominal fat considered riskier?
Visceral fat around abdominal organs is metabolically active and linked to insulin resistance, inflammation, and cardiovascular risk. Lower-body fat tends to be less harmful metabolically.