Last updated: 3 October 2026
Reviewed by Jordan Morley, FA Level 2 Football Coach
Body fat percentage tells you how much of your body is fat versus lean mass (muscle, bone, organs, water). It's a more meaningful fitness and health measure than weight or BMI because it reflects composition. Healthy ranges differ by sex — women carry more essential fat. Common estimation methods include the US Navy tape measurement, skinfold calipers, bioimpedance scales, and the gold-standard DEXA scan.
- Proportion of bodyweight that is fat
- More meaningful than weight or BMI
- Healthy ranges differ by sex
- Measured by tape, calipers, scales or DEXA
In practice
Essential fat (roughly 3-5% for men, 10-13% for women) is the biological minimum needed for hormonal and organ function, while athletic ranges (6-13% for men, 14-20% for women) reflect visible muscle definition without health risk — going below essential levels, even to chase a leaner look, carries real hormonal and performance risks rather than offering any extra benefit.
FAQ
What's a healthy body fat percentage range?
Roughly 10-20% for men and 18-28% for women is considered a healthy general range, with athletic/competition ranges running lower (6-13% men, 14-20% women).
Is going below essential fat levels ever a good idea?
No — dropping below essential fat percentage (roughly 3-5% men, 10-13% women) risks hormonal disruption, impaired immune function and other serious health consequences, regardless of aesthetic goals.