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Waist-to-Height Ratio Calculator

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Enter your waist circumference and height to find your waist-to-height ratio (WHtR).

Waist-to-Height Ratio Calculator

Live
Waist-to-height ratio
0.471
Category
Healthy range
A general population screening measure - not a diagnosis. Talk to a healthcare provider about your individual health risk.

The formula

WHtR = Waist circumference / Height (same units for both)
Example

A 32-inch waist and 68-inch height: WHtR = 32 / 68 = 0.471, in the healthy range.

Step-by-step guide

  1. Measure your waist at the midpoint between your lowest rib and the top of your hip bone, breathing out normally.
  2. Enter your waist measurement and height in the same unit.
  3. Read your ratio and category.

Why some researchers prefer WHtR over BMI

BMI uses only height and weight, treating everyone at a given height and weight the same regardless of where that weight is distributed on the body. Waist-to-height ratio instead specifically captures abdominal (visceral) fat, which research has linked more directly to cardiovascular and metabolic health risk than overall body weight - two people with an identical BMI can have meaningfully different WHtR values depending on their body fat distribution. Many researchers suggest a simple guideline: keep your waist circumference below half your height.

Common mistakes

Measuring the waist at the narrowest point (near the belly button) instead of the standard midpoint between the lowest rib and hip bone - this can understate the true measurement.
Mixing units - entering waist in inches and height in centimeters (or vice versa) produces a meaningless ratio.

Frequently asked questions

Is WHtR better than BMI?

They measure different things, and many health professionals use both together rather than choosing one - WHtR adds information about fat distribution that BMI alone doesn't capture.

Does this apply the same way to everyone?

The general "under 0.5 is healthy" guideline is a population-level screening tool - individual factors like age, sex, ethnicity, and muscle mass can shift what's appropriate for a specific person, so it's a starting point rather than a fixed rule.

Where exactly do I measure my waist?

At the midpoint between the bottom of your ribcage and the top of your hip bone, with the tape snug but not compressing the skin, measured after a normal exhale.

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