Body Fat Percentage Calculator
Estimate body fat percentage using Deurenberg age-sex adjusted BMI formula.
Clinical Accuracy
Grade A
Your Measurements
Body Fat Reference Ranges
| Category | Men | Women |
|---|---|---|
| Essential fat | 2–5% | 10–13% |
| Athletic | 6–13% | 14–20% |
| Fitness | 14–17% | 21–24% |
| Average | 18–24% | 25–31% |
| Obese | 25%+ | 32%+ |
Source: American Council on Exercise (ACE). Deurenberg 1991 formula used for estimation.
Body Fat Estimate
Result Breakdown
Note: BMI-based estimation. Skinfold calipers or DEXA scan provide higher precision.
Deurenberg Equation (1991)
BF% = 1.2 × BMI + 0.23 × Age − 10.8 × Sex − 5.4
(Sex: Male = 1, Female = 0)
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Research Reference
biotechScientific MethodUses Deurenberg equation with optional BMI auto-calculation from weight and height.
Deurenberg P et al. (1991)
Br J Nutr.