Waist to Height Ratio Calculator

Calculate your waist-to-height ratio to screen abdominal fat distribution and understand its relationship to cardiometabolic health.

Waist-to-height ratio

Use the same unit for both measurements. The ratio is waist circumference divided by height.

Gender

Waist Circumference (cm)

Height (cm)

About waist-to-height ratio

Waist-to-height ratio, often abbreviated WHtR, is a simple screening measure that compares waist circumference with standing height. The calculation divides waist by height when both measurements use the same unit. A person with a 75 cm waist and a 165 cm height has a ratio of about 0.455. Because the units cancel, the result is a dimensionless number that can be compared across people who use centimeters or inches. The measure focuses on central fat distribution. Fat stored around the abdomen is more strongly associated with insulin resistance, high blood pressure, abnormal blood lipids, type 2 diabetes, and cardiovascular disease than fat stored in some other areas. Height provides context for the waist measurement, so the ratio can be more informative than using waist circumference alone. It also complements body mass index, which describes weight relative to height but does not show where body fat is carried. A practical public-health message is to keep the waist circumference below half of height. In this calculator, values from 0.40 to below 0.50 are described as the healthy range, values from 0.50 to below 0.60 indicate increased risk, and values of 0.60 or more indicate high risk. A value below 0.40 is not automatically healthier and may warrant attention to nutrition or body composition. Thresholds are screening guides rather than diagnostic boundaries, and individual risk varies with age, ancestry, pregnancy, medical conditions, and other clinical factors. For a useful measurement, stand upright, relax the abdomen, and place a flexible tape horizontally around the midpoint between the lowest rib and the top of the hip bone. Measure after a normal breath out without pulling the tape into the skin. Measure height without shoes. Repeating the waist measurement and using the average can reduce ordinary placement error. The result should be interpreted as one part of a broader health assessment. Blood pressure, glucose, cholesterol, activity, smoking, sleep, family history, and symptoms also matter. This calculator does not diagnose disease or replace professional advice. It is most valuable for tracking a consistently measured ratio over time and for starting an informed conversation with a healthcare professional.

Waist-to-height ratio examples

These examples use centimeters for both measurements.

Measurements	Ratio and range	Interpretation
Waist 75 cm, height 165 cm	0.455 — Healthy range	The waist is less than half the height.
Waist 85 cm, height 175 cm	0.486 — Healthy range	The result remains just below the 0.50 screening threshold.
Waist 95 cm, height 160 cm	0.594 — Increased risk	The ratio is above 0.50 and close to the high-risk threshold.
Waist 110 cm, height 170 cm	0.647 — High risk	The ratio is above 0.60 and suggests substantial central adiposity.

How to calculate waist-to-height ratio

Select the gender used to describe the measurement.
Measure the waist at the midpoint between the lowest rib and top of the hip bone, then enter the value in centimeters.
Measure standing height without shoes and enter it in centimeters.
Select Calculate Ratio to view the ratio and screening range.

Waist-to-height ratio FAQ

What is a healthy waist-to-height ratio?

A ratio from 0.40 to below 0.50 is commonly used as a lower-risk screening range for adults. It is a guide, not a diagnosis, and personal risk depends on additional health factors.

Is waist-to-height ratio better than BMI?

The measures answer different questions: WHtR reflects central fat distribution, while BMI relates total weight to height. Using both can provide more context than relying on either measure alone.

Can I enter measurements in inches?

Yes, mathematically the ratio works with any unit as long as waist and height use the same unit. The field labels use centimeters, so convert both values consistently before entering them.

Where should I measure my waist?

Use a horizontal tape at the midpoint between the lowest rib and the top of the hip bone after a normal breath out. Do not compress the skin, and repeat the measurement if placement is uncertain.

Does the ratio diagnose heart disease or diabetes?

No. It is a screening indicator associated with cardiometabolic risk and cannot establish a diagnosis. A clinician can interpret it with blood pressure, laboratory results, history, and symptoms.