Waist to Hip Ratio Calculator

Both measurements should use the same unit. You can use centimeters or inches because WHR is a ratio rather than a measurement with its own unit.

If your waist measurement is 75 cm and your hip measurement is 100 cm:

The Waist to Hip Ratio Calculator above also converts units automatically if your waist and hip measurements were entered in different units.

Waist measurement technique matters because moving the tape to a different location can change the recorded circumference and therefore change your waist-to-hip ratio.

For WHR used in health research or assessment, follow the waist measurement protocol specified by the reference you are using. Do not assume that a clothing waist measurement and a standardized anthropometric waist measurement always use exactly the same anatomical landmark.

The World Health Organization's expert consultation specifically examines waist and hip measurement methods and notes that measurement protocol is an important consideration when interpreting WHR.

Hip circumference is the denominator in the WHR formula. A relatively small change in hip measurement can therefore change the calculated ratio.

Use the hip measurement location specified by the protocol you are following and keep the measuring tape positioned consistently around the body.

If you are using the calculator primarily for body-proportion comparison, our Body Measurements Chart provides a visual reference for the main body measurement locations.

Waist-to-hip ratio has been studied as an anthropometric measure of body fat distribution. The WHO expert consultation reviewed evidence about its relationship with cardiovascular disease, diabetes, mortality and BMI, while also emphasizing that interpretation can vary by factors including sex, age and ethnicity.

For that reason, the numerical result from a Waist to Hip Ratio Calculator should not be treated as a medical diagnosis by itself.

Suppose a woman has a waist circumference of 78 cm and hip circumference of 100 cm.

Now suppose a man has a 36-inch waist and a 40-inch hip circumference.

Because both measurements within each example use the same unit, no unit conversion is needed before calculating WHR.

WHR and body shape are related concepts but they are not identical. The Waist to Hip Ratio Calculator compares only two measurements: waist and hips.

A body-shape calculator may consider additional measurements such as bust and shoulders. These extra measurements help distinguish patterns such as hourglass, pear, rectangle, apple and inverted triangle.

If your goal is to identify your body shape rather than calculate WHR, use our Body Shape Calculator.

WHR uses only waist and hip circumference. Bust-waist-hip measurements include a third value: the bust.

For example, BWH measurements such as 36-28-38 provide more information about upper-to-lower body proportions than WHR alone.

If you want to compare all three measurements, use our Bust Waist Hip Measurements Calculator .

Yes. A waist hip ratio calculator can use either inches or centimeters because WHR is derived from division.

For example:

Both calculations represent essentially the same physical proportions.

A WHR calculator provides a ratio based on two circumference measurements. It cannot by itself diagnose a medical condition, determine overall body composition or explain why a particular WHR value occurred.

Measurement technique, age, sex, ethnicity and the reference standard can all matter when WHR is used in health-related contexts. The WHO expert consultation specifically discusses variations by sex, age and ethnicity and the role of WHR in risk prediction.

If you are concerned about your personal health risk, discuss your measurements with an appropriate healthcare professional rather than relying only on an online calculator.