Waist-to-Hip Ratio Calculator
Calculate waist-to-hip ratio from body measurements.
A waist-to-hip ratio (WHR) calculator divides your waist circumference by your hip circumference to produce a ratio used as an indicator of body fat distribution and associated health risk. Unlike BMI, which doesn't account for where fat is carried on the body, waist-to-hip ratio specifically reflects the 'apple' versus 'pear' body shape distinction.
Enter your waist and hip measurements (in inches or centimeters) to calculate your waist-to-hip ratio and risk category.
Worked Calculation Examples
| Scenario | Result | Calculation Step |
|---|---|---|
| Waist 34 in, hip 40 in (female) | WHR = 0.85 | WHR = 34 ÷ 40 = 0.85 - right at the commonly cited 0.85 threshold for women. |
| Waist 38 in, hip 40 in (male) | WHR = 0.95 | WHR = 38 ÷ 40 = 0.95 - above the commonly cited 0.90 threshold for men, suggesting a more "apple-shaped" fat distribution. |
Why Fat Distribution Matters, Not Just Total Amount
Research has associated abdominal (visceral) fat specifically with higher cardiovascular and metabolic risk compared to fat carried in the hips and thighs, which is why waist-to-hip ratio can add information that total weight or BMI alone do not capture. Two people with the same BMI can have meaningfully different health risk profiles if one carries fat predominantly around the abdomen and the other around the hips.
WHO Waist-to-Hip Ratio Risk Categories
The World Health Organization has referenced general risk thresholds for waist-to-hip ratio: for men, a ratio above 0.90 is commonly associated with increased health risk, while for women, the commonly cited threshold is above 0.85. These thresholds differ by sex because men and women naturally tend to carry fat differently on average.
How to Measure Waist and Hip Circumference Correctly
For a consistent measurement, waist circumference is typically measured at the narrowest point of the torso (or at the navel if there's no clear narrowing), and hip circumference at the widest point of the buttocks, both measured with a flexible tape measure without compressing the skin. Measuring at the same time of day and in a consistent state can improve consistency when tracking changes over time.
How to Use the Waist-to-Hip Ratio Calculator
- Open the Waist-to-Hip Ratio Calculator and enter the values requested in the input fields.
- Check the units, percentages, dates, or time periods before reading the answer.
- Review the instant result and adjust any value to compare another scenario.
- Use the formula, example, and FAQs below to understand how the waist to hip ratio calculator works.
Frequently Asked Questions
What is a healthy waist-to-hip ratio?
Commonly cited WHO reference thresholds suggest increased health risk above 0.90 for men and above 0.85 for women, though these are general population guidelines rather than individual diagnostic cutoffs.
Why does waist-to-hip ratio matter if I already know my BMI?
BMI does not account for where fat is distributed on the body. Waist-to-hip ratio specifically reflects abdominal versus hip/thigh fat distribution, which research has associated with different levels of cardiovascular and metabolic risk even at the same BMI.
How do I measure my waist and hip correctly?
Measure your waist at its narrowest point (or at the navel if there's no clear narrowing) and your hips at their widest point, using a flexible tape measure without compressing the skin, ideally at a consistent time of day.
What is the difference between 'apple' and 'pear' body shapes?
An 'apple' shape describes carrying more fat around the abdomen (a higher waist-to-hip ratio), while a 'pear' shape describes carrying more fat around the hips and thighs (a lower ratio) - apple-shaped fat distribution is generally associated with higher health risk.
Is waist-to-hip ratio more accurate than BMI?
They measure different things - BMI reflects overall weight relative to height, while waist-to-hip ratio reflects fat distribution. Many health assessments use both together rather than relying on either measurement alone.
Can waist-to-hip ratio change without weight loss?
Yes. It is possible to change fat distribution somewhat through overall lifestyle changes without significant total weight change, since where the body stores fat is influenced by multiple factors beyond just total weight.
Related Calculators
Waist-to-Height Ratio Calculator
Calculate waist-to-height ratio from circumference and height.
Body Fat Calculator
Estimate body fat percentage using US Navy tape measure method.
BMI Calculator
Compute your Body Mass Index (BMI) and health category based on height and weight.
Calories Calculator
Estimate daily calorie intake (TDEE & BMR) for weight loss or muscle gain.
Ideal Weight Calculator
Calculate ideal body weight target based on height, gender, and frame size.
Water Intake Calculator
Calculate daily fluid hydration needs based on weight and exercise.
Last updated: September 27, 2026.