A practical tool, a clearer next step

Waist-to-Height Ratio Calculator

Calculate waist circumference divided by height using consistent units.

Divide waist circumference by height in the same unit. Measure midway between the lowest rib and top of the hip after breathing out naturally. This ratio does not measure body fat or muscle and does not diagnose health. Height: 120–230 cm; waist: 40–200 cm.

Method and source

For adults. These educational estimates are not a prescription, diagnosis or a plan for pregnancy, breastfeeding or a medical condition.

How to interpret the result

A ratio describes the relationship between two measurements. It is not a body-fat percentage or a diagnosis. Read the linked source for applicability and measurement instructions.

Keep the context

Choose the next guide for the question you are trying to answer.

Put visible proportions in context

Explore photo-based shape and balance feedback alongside your actual tape measurements.

All body composition tools

Choose another tool by input and task.

Understand body composition

Read the method and limitations before drawing a conclusion.

Common questions

Does this calculate body fat?

No. It calculates waist-to-height ratio only. Do not convert the ratio into a body-fat percentage.