Tools

Body fat calculator

An estimate of your body fat from a measuring tape. Women need the hip measurement too.

Written by Poshan Labs. Sources are named on the page. Last updated 26 October 2026.

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Height
ftin
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How can I estimate my body fat with a tape measure?

This uses the US Navy circumference method, which estimates body fat from:

  • your height
  • your neck and waist measurements
  • your hips as well, if you are a woman

It is usually within a few percentage points of a lab measurement. A DEXA scan is the accurate way if you need an exact figure.

How this works

This uses the US Navy circumference method, which estimates body fat from your height and your neck, waist and (for women) hip measurements, using logarithms of the differences. It's usually within a few percentage points of a lab measurement. A DEXA scan is the accurate way.

A number is a starting point, not a plan. On a free call, Puja looks at it with your reports and your routine.

Questions about your answer?

Once you have an answer, it goes into the message for you, so there is nothing to copy.