Free Body Fat Percentage Calculator

Knowing your body fat percentage gives you a much better picture of your overall health and fitness progress than merely stepping on a traditional scale. Our free Body Fat Percentage Calculator uses the highly regarded U.S. Navy method to estimate your body composition using simple tape measurements.

How to Measure and Use the Calculator

1. Set your parameters: Select your gender and your preferred measurement unit (Imperial/inches or Metric/centimeters). The required inputs will automatically adjust based on your gender.
2. Measure your Height: Stand straight and measure your total height without shoes.
3. Measure your Neck: Wrap the tape measure around your neck, starting just below the larynx (Adam's apple). Ensure the tape is flat but not uncomfortably tight.
4. Measure your Waist: Measure your waist circumference at the level of your navel (belly button). For men, measure horizontally around the navel. For women, measure at the narrowest point of the waist.
5. Measure your Hips (Women Only): Measure around the widest part of your hips and buttocks.
6. Calculate: Click "Calculate Body Fat" to instantly see your estimated body fat percentage and fitness category.

Understanding Your Body Fat Category

Based on the American Council on Exercise (ACE), body fat percentages fall into different categories based on gender:

• Athletes: Men (6-13%), Women (14-20%)
• Fitness: Men (14-17%), Women (21-24%)
• Average: Men (18-24%), Women (25-31%)
• Obese: Men (25%+), Women (32%+)