Free Tool — No Signup Required
Body Fat Calculator%
Go beyond BMI. Calculate your actual body fat percentage using two methods — and see your fat mass vs lean mass breakdown.
Body Fat
18.6%
Average
Fat Mass
13.0 kg
Lean Mass
57.0 kg
Body Fat % Classification (male)
Essential Fat 0–6%
Athlete 6–14%
Fitness 14–18%
Average 18–25% You
Obese ≥ 25%
Estimates only. Accuracy varies. Consult a doctor for medical advice.
BMI Method vs US Navy Method
BMI-Based (Deurenberg, 1991)
Uses your BMI, age, and sex. Quick and requires no measurements — but less accurate, especially for muscular or older individuals.
US Navy Formula
Uses circumference measurements (waist, neck, hip for women). More accurate than BMI-based methods. Used by the US military for fitness assessment.
Build wealth while you build health
SparkyMinis tracks your investments, income, and expenses — so your financial fitness grows alongside your physical fitness.
Start for FreeNo credit card · Free forever plan available