What Is Waist-to-Hip Ratio?
Waist-to-hip ratio, often shortened to WHR, compares the circumference of your waist with the circumference of your hips. It is a simple measure of body fat distribution. A higher number means your waist is larger in relation to your hips, which may suggest more weight is carried around the abdomen.
WHR is not the same as body weight, body mass index (BMI), or body fat percentage. BMI compares weight with height, while WHR focuses on where body size is distributed. That is why a BMI and waist-to-hip ratio calculator can give two different but complementary pieces of information.
Waist-to-hip ratio in one sentence
Measure your waist and hips with the same unit, then divide the waist measurement by the hip measurement.
How to Measure Your Waist and Hips Correctly
The calculation is easy, but tape placement can change the result. For consistent measurements, use a flexible, stretch-resistant tape and follow the same method every time.
Step 1: Measure your waist
- Stand upright with your feet together and your abdomen relaxed.
- Find the midpoint between the bottom of your last palpable rib and the top of your hip bone (iliac crest).
- Wrap the tape around that point, keeping it horizontal and snug without pressing into the skin.
- Take the measurement after a normal breath out.
Step 2: Measure your hips
- Keep standing naturally with your feet together.
- Wrap the tape around the widest part of your hips and buttocks.
- Check in a mirror that the tape is level and parallel to the floor.
- Record the number without pulling the tape tight.
Measurement tip: Take each measurement twice. If the readings differ, repeat them and use the average of the two closest values. Use the same placement method when tracking change.
How to Calculate Waist-to-Hip Ratio
To calculate waist-to-hip ratio, divide your waist circumference by your hip circumference. The result has no unit because the inches or centimeters cancel out.
Example using inches
If your waist is 32 inches and your hips are 40 inches:
Example using centimeters
If your waist is 81 cm and your hips are 102 cm:
You do not need to convert centimeters to inches. A waist-to-hip ratio calculator in cm and a calculator in inches return the same number when both inputs use the same unit.
How to calculate hip-to-waist ratio
A hip-to-waist ratio calculator reverses the equation: hips ÷ waist. For a 40-inch hip and 32-inch waist, the hip-to-waist ratio is 1.25. That is mathematically correct, but health reference cutoffs are normally written as waist divided by hips. Our results show both values and label them clearly.
Waist-to-Hip Ratio Chart for Women and Men
WHO-based adult screening commonly uses a waist-to-hip ratio above 0.85 for women and above 0.90 for men as an indicator of abdominal obesity. These are general public-health cutoffs—not a diagnosis and not a complete cardiovascular risk score.
| Adult reference | At or below the general cutoff | Above the general cutoff |
|---|---|---|
| Women | 0.85 or lower | More than 0.85 |
| Men | 0.90 or lower | More than 0.90 |
A result above the cutoff suggests a greater concentration of size around the waist relative to the hips. It does not tell you how much visceral fat you have, and it does not account for every factor that affects health. Age, ethnicity, blood pressure, cholesterol, blood sugar, smoking, fitness, family history, medications, and existing health conditions also matter.
There is no single “perfect” WHR
Use the chart as screening context rather than a score to chase. A smaller number is not automatically better, and changing your hips or waist solely to reach an appearance target is not a medical recommendation.
Waist-to-Hip Ratio for Women vs. Men
The formula is identical for women and men: waist ÷ hips. The difference is the commonly used adult cutoff. A female waist-to-hip ratio calculator compares the result with 0.85, while a male waist-to-hip ratio calculator commonly uses 0.90.
What does a 0.7 waist-to-hip ratio mean?
A WHR of 0.70 is below the general adult cutoff for both women and men. The number is also widely mentioned in discussions about female attractiveness and an “hourglass” body shape. Those ideas come from appearance research and cultural preferences; they are not universal, they vary between people and populations, and they should not be treated as a medical ideal. This calculator does not score attractiveness.
What does a 0.8 waist-to-hip ratio mean?
A WHR of 0.80 is below the general adult cutoffs for both sexes. It still needs context: the same ratio can come from very different waist and hip measurements. Waist circumference, height, BMI, health history, and metabolic markers may change the overall picture.
Body shape, hourglass, and bust measurements
Some searches combine bust, waist, and hips to describe clothing fit or body shape. That is a different goal from health screening. A bust-to-waist-to-hip ratio calculator may describe proportions, but bust size is not part of the WHO waist-to-hip health formula. For that reason, this tool only uses waist and hip measurements.
WHR vs. BMI, Waist Circumference, and Waist-to-Height Ratio
No single body measurement tells the whole story. The most useful metric depends on what you want to understand.
Waist-to-hip ratio
Compares waist size with hip size. It focuses on relative fat distribution and body shape.
Formula: waist ÷ hipsBMI
Compares weight with height. It is widely used but does not show where weight is carried.
Calculate BMI →Waist circumference
Uses the waist measurement alone. In the United States, NHLBI notes increased risk above 35 inches for women or 40 inches for men.
Formula: direct measurementWaist-to-height ratio
Compares waist with height. NHS guidance uses the simple message to keep your waist below half your height.
Formula: waist ÷ heightUsing BMI and waist-to-hip ratio together can show whether overall weight and central fat distribution point in the same direction. Our optional fields provide quick context without replacing the full body fat calculator or a clinical assessment.
When Waist-to-Hip Ratio May Be Less Useful
WHR is inexpensive and easy to repeat, but measurement error and individual differences matter. Results may be less reliable or need professional interpretation in these situations:
- Pregnancy: normal changes in the abdomen make standard adult cutoffs inappropriate.
- Children and teenagers: growth and puberty require age-specific assessment.
- Recent surgery, swelling, ascites, or a large abdominal mass: waist size may not represent usual fat distribution.
- Very muscular builds: circumference cannot distinguish muscle from fat.
- Inconsistent tape placement: moving the tape by a few centimeters can change WHR.
- Different ethnic backgrounds: the relationship between body measurements and metabolic risk can vary.
What to Do With Your Result
If your result is above the general cutoff, do not panic and do not make treatment decisions from WHR alone. Use it as a reason to look at the wider picture.
Waist-to-Hip Ratio Calculator FAQs
How do you calculate waist-to-hip ratio?
Measure your waist and hips in the same unit, then divide waist circumference by hip circumference. For example, 30 inches ÷ 40 inches = 0.75.
Can I calculate waist-to-hip ratio in inches?
Yes. Inches and centimeters produce the same ratio when both measurements use the same unit. Do not mix a waist measurement in inches with hips in centimeters.
What is a healthy waist-to-hip ratio?
WHO-based adult screening commonly uses 0.90 for men and 0.85 for women as general cutoffs. A number above the applicable cutoff suggests more central fat distribution, but it does not diagnose a health condition.
Is 0.7 the ideal waist-to-hip ratio for women?
It is below the general adult screening cutoff, but it is not a universal medical target. The idea of 0.7 as an attractiveness standard is culturally and scientifically more complex than a single ratio.
Is 0.8 a good waist-to-hip ratio?
It is below the general cutoff for adult women and men. Overall health still depends on waist size, age, ethnicity, blood pressure, cholesterol, blood sugar, activity, and other factors.
How do I calculate hip-to-waist ratio?
Divide hip circumference by waist circumference. This is the inverse of WHR. Do not compare hip-to-waist results with a waist-to-hip health chart.
Does WHR calculate body fat percentage?
No. WHR describes proportions and fat distribution; it does not directly calculate body fat percentage. Use a dedicated body fat calculator for an estimate.
Is waist-to-hip ratio better than BMI?
They measure different things. BMI reflects weight relative to height, while WHR reflects waist size relative to hips. Using both can add context, but neither is a diagnosis.
Where exactly should I measure my waist?
For the WHO method, measure at the midpoint between the bottom of the last palpable rib and the top of the hip bone, after a normal breath out.
Should I use the calculator during pregnancy?
No. Pregnancy changes waist circumference, so standard adult WHR interpretation is not appropriate.
Can teenagers use this WHR chart?
Standard adult cutoffs should not be applied to children and teenagers without professional guidance because body proportions change during growth and puberty.
How often should I measure WHR?
There is usually no need to measure frequently. If tracking change, use the same tape, placement, posture, and time conditions. Monthly measurements are generally more meaningful than daily checks.
Sources and Editorial Notes
This calculator uses the mathematical definition of WHR and the measurement approach described by the World Health Organization. Adult cutoffs are general public-health screening references and may not fit every population or individual.
- World Health Organization. Waist circumference and waist-hip ratio: report of a WHO expert consultation.
- National Heart, Lung, and Blood Institute. Aim for a Healthy Weight.
- NHS. Calculate your waist-to-height ratio.
Published July 12, 2026 · Formula and source review by the Heart Score Calculator editorial team.