Body Fat Estimator
Estimated Body Fat
17.5%
Fit
Categories (male)
Learn more about body fat percentage
Understanding Body Fat Percentage
Body fat percentage tells you what fraction of your total body weight is fat tissue. Unlike BMI, which only considers height and weight, body fat percentage gives a better picture of body composition by distinguishing between fat mass and lean mass (muscle, bone, organs, water).
This calculator uses the US Navy Method, which estimates body fat from circumference measurements. While not as accurate as methods like DEXA scans or hydrostatic weighing, it provides a reasonable estimate that you can track over time using nothing more than a tape measure.
For men, essential fat (the minimum needed for basic health) is 2-5%. Athletic men typically carry 6-13% body fat. For women, essential fat is higher at 10-13%, and athletic women typically carry 14-20%. These differences are due to physiological needs related to reproductive health.
Rather than chasing a specific number, focus on the trend. Measure at the same time of day under similar conditions (morning, before eating). Small fluctuations are normal. What matters is the direction over weeks and months. Pair this with the scale, progress photos, and how your clothes fit for a complete picture.
Understanding Body Fat Percentage
Body fat percentage tells you what fraction of your total body weight is fat tissue. Unlike BMI, which only considers height and weight, body fat percentage gives a better picture of body composition by distinguishing between fat mass and lean mass (muscle, bone, organs, water).
This calculator uses the US Navy Method, which estimates body fat from circumference measurements. While not as accurate as methods like DEXA scans or hydrostatic weighing, it provides a reasonable estimate that you can track over time using nothing more than a tape measure.
For men, essential fat (the minimum needed for basic health) is 2-5%. Athletic men typically carry 6-13% body fat. For women, essential fat is higher at 10-13%, and athletic women typically carry 14-20%. These differences are due to physiological needs related to reproductive health.
Rather than chasing a specific number, focus on the trend. Measure at the same time of day under similar conditions (morning, before eating). Small fluctuations are normal. What matters is the direction over weeks and months. Pair this with the scale, progress photos, and how your clothes fit for a complete picture.
This calculator is for educational purposes only and is not medical advice. Results are estimates based on general formulas and may not reflect your individual needs. Consult a healthcare professional before making changes to your diet or exercise routine.