Body Fat Calculator (Navy Method)

Body Fat: The Metric That Matters More Than Weight

Traditional BMI only reflects your height-to-weight ratio, but Body Fat Percentage (%) reveals your true body composition. If you are a muscular athlete, your BMI might suggest you are overweight, yet your body fat could be in the healthiest range.

About the US Navy Method

This formula was developed by the US Naval Health Research Center. It estimates body fat by measuring Neck and Waist** circumference (and **Hips for women). Research shows that while DEXA scans are the gold standard, the Navy Method is one of the most reliable and easy ways to track body composition changes at home.

How to Measure Correctly

1. Neck: Just below the Adam's apple, with the tape parallel to the floor. 2. Waist: At the narrowest part of your abdomen (usually just above the navel). Do not suck in your stomach. 3. Hips (Women): At the widest part of the buttocks.

Body Fat Categories (ACE Standards)

• Athletes: Men 6-13% / Women 14-20%
• Fitness Range: Men 14-17% / Women 21-24%
• Average: Men 18-24% / Women 25-31%
• Obese Range: Men >25% / Women >32%