Deurenberg Body-Fat Estimate
Deurenberg body-fat % estimate (Br J Nutr 1991) = 1.20 × BMI + 0.23 × age - 10.8 × sex - 5.4 (male = 1, female = 0), with the ACE body-fat category; a BMI-based estimate, not a measured composition.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- BMI
- 30 kg/m^2
- Age
- 40 years
- Sex
- Male
Result: Estimated body fat 29% — ACE obese (>= 25%).
The tool opens with these values already filled in. Replace them with your own.
What the result means
- Men
- Essential 2-5, athletes 6-13, fitness 14-17, acceptable 18-24, obese >= 25%.
- Women
- Essential 10-13, athletes 14-20, fitness 21-24, acceptable 25-31, obese >= 32%. A BMI-based estimate, not a measured composition.
What you enter
- BMI
- Age
- Sex
How this is calculated
Deurenberg P, Weststrate JA, Seidell JC. Body mass index as a measure of body fatness: age- and sex-specific prediction formulas. Br J Nutr. 1991;65(2):105-114. (Categories: American Council on Exercise.) Read the source ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.