Body Fat Percentage Calculator
Enter your weight, height, age and sex to estimate your body fat percentage using the Deurenberg formula.
Body Fat Percentage Calculator
Estimate your body fat percentage from BMI, age and sex using the Deurenberg formula.
This calculator estimates body fat percentage using the Deurenberg formula, which derives an estimate from BMI, age and sex rather than skinfold or scan measurements. It is a convenient population-level estimate, not a substitute for methods like DEXA scans or skinfold calipers.
Example
- With the default values shown above, this calculator returns: Body Mass Index (BMI) ≈ 24.22; Estimated Body Fat Percentage ≈ 19.8.
Frequently Asked Questions
How accurate is a BMI-based body fat estimate?
It is a reasonable population-level estimate but can overestimate body fat in muscular individuals and underestimate it in those who have lost muscle mass, since it does not directly measure fat or muscle.
What is a more accurate way to measure body fat?
DEXA scans, hydrostatic weighing, and skinfold caliper measurements taken by a trained professional are generally more accurate than any formula based only on height, weight, age and sex.