Calculate & Convert

Body Fat %

Estimate body-fat percentage from BMI, age and sex.

Enter values

kg
cm
years

The formula

BF% = 1.20·BMI + 0.23·age − 10.8·sex − 5.4

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Frequently asked questions

How accurate is this estimate?+
The Deurenberg formula gives a rough estimate. For precise figures use calipers, DEXA or hydrostatic weighing.
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