Free Body Fat Percentage Calculator – Estimate Your Body Composition Fast

Know your real fitness level beyond the scale. This Body Fat Percentage Calculator uses the U.S. Navy Method to estimate how much of your body is fat vs. lean mass, based on your measurements and gender. It’s fast, simple, and helpful for anyone working on weight loss, muscle building, or body recomposition.

📲 How to Use the Calculator:

🔹 Step 1: Select your gender

Choose Male or Female

🔹 Step 2: Enter your measurements

• Height – in centimeters

• Neck circumference – in centimeters

• Waist circumference – in centimeters

• Hip circumference (for females only) – in centimeters

🔹 Step 3: Click "Calculate"

You’ll instantly get your estimated Body Fat Percentage and Lean Body Mass.

🧠 What Do the Results Mean?

• Essential Fat: 10–13% (women), 2–5% (men)

• Fitness Range: 21–24% (women), 14–17% (men)

• Athletic Range: 14–20% (women), 6–13% (men)

• Overweight: 25–31% (women), 18–24% (men)

• Obese: 32%+ (women), 25%+ (men)

💡 Pro Tips:

• Track your body fat monthly for real progress

• Combine this with your BMI for a full health snapshot

• Lowering body fat is more important than just losing weight