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Waist-to-Hip Ratio Calculator
Calculate your waist-to-hip ratio from simple tape measurements and see your WHO health risk category for your sex, with a full reference range chart.
Enter your measurements
Measure your waist at its narrowest point and your hips at their widest point for the most accurate result.
Low health risk range for men.
WHO reference ranges for your sex
Quick examples
How to use this waist-to-hip ratio calculator
Choose your sex
Risk categories differ for men and women.
Measure your waist
At the narrowest point, tape snug but not compressed.
Measure your hips
At the widest point, typically around the buttocks.
Review your result
Check your ratio, risk category, and the reference chart.
What is a waist-to-hip ratio calculator?
A waist-to-hip ratio calculator divides your waist measurement by your hip measurement to describe where your body tends to carry fat. It's a screening indicator used alongside other measures, not a diagnosis, and is quick to calculate from two tape measurements.
Because fat distribution patterns differ between men and women, this calculator applies separate WHO reference ranges depending on the sex you select, rather than using a single universal cutoff.
How waist-to-hip ratio is calculated
The formula itself is simple division — no unit conversion is needed as long as both measurements use the same unit, since the units cancel out in the ratio.
A WHR of 0.80 means your waist measures 80 percent of your hip measurement. Higher ratios indicate proportionally more fat carried around the waist relative to the hips.
WHO risk categories explained
The World Health Organization's commonly cited cutoffs place men under 0.90 and women under 0.80 in the lower-risk range. Moderate risk covers 0.90–0.99 for men and 0.80–0.84 for women, and higher risk covers 1.00 and above for men or 0.85 and above for women.
These ranges are general population screening guidance, not individual medical thresholds, and should be interpreted alongside other health markers and, where relevant, a healthcare professional's assessment.
Measuring accurately at home
Use a flexible tape measure, stand upright, and measure at the end of a normal exhale without pulling the tape tight enough to compress the skin. Measuring at roughly the same time of day and under similar conditions makes repeat measurements more comparable if you're tracking changes over time.
Where this fits with your other health tracking
Waist-to-hip ratio is most useful alongside other body composition measures rather than on its own. The BMI Calculator gives a general weight-for-height screening number that doesn't account for fat distribution, which is exactly the gap WHR helps fill.
If you want a closer estimate of your actual fat percentage rather than a distribution ratio, the Body Fat Calculator uses measurement-based methods to estimate fat mass and lean mass directly. And if you're curious how your measurements translate into a general silhouette description, the Body Shape Calculator classifies body shape from bust, waist, and hip measurements.
Frequently asked questions
What is waist-to-hip ratio?
Waist-to-hip ratio (WHR) is your waist measurement divided by your hip measurement. It's a simple way to describe where your body tends to store fat — more around the waist versus more around the hips — and is used by health organizations as a screening indicator for cardiometabolic risk.
How do I measure my waist and hips correctly?
Measure your waist at its narrowest point, usually just above the belly button, with the tape snug but not compressing the skin. Measure your hips at their widest point, typically around the buttocks. Measure both while standing, breathing normally, and take the measurement at the end of a normal exhale for consistency.
What is a healthy waist-to-hip ratio for men and women?
The World Health Organization generally considers a WHR under 0.90 lower risk for men and under 0.80 lower risk for women. Ratios of 0.90–0.99 for men or 0.80–0.84 for women are considered moderate risk, and 1.00 or higher for men or 0.85 or higher for women are considered higher risk.
Why does waist-to-hip ratio differ between men and women?
Men and women tend to store fat differently due to hormonal and skeletal differences — men more often carry fat centrally around the abdomen, while women more often carry fat around the hips and thighs, especially before menopause. The WHO thresholds account for this by using different cutoffs for each sex.
Is waist-to-hip ratio better than BMI for assessing health risk?
Neither measure tells the whole story on its own. BMI doesn't account for where fat is distributed, while WHR doesn't account for overall body size or muscle mass. Many health organizations suggest using WHR, waist circumference, and BMI together, alongside other health markers, rather than relying on any single number.
What does an apple shape versus pear shape mean?
'Apple-shaped,' or android fat distribution, describes fat concentrated around the abdomen and is associated with a higher WHR. 'Pear-shaped,' or gynoid fat distribution, describes fat concentrated around the hips and thighs and is associated with a lower WHR. These are descriptive terms, not medical diagnoses.
Can my waist-to-hip ratio change over time?
Yes. WHR can shift with changes in body weight, muscle mass, hormonal changes such as menopause, and overall fat distribution, which itself is influenced by genetics, diet, and activity level. Re-measuring periodically with a consistent method is more useful than a single one-time reading.
This tool is for educational purposes only. Always verify important results with a qualified professional.
