Body Fat Calculator

Calculate your body fat percentage using the U.S. Navy method or skinfold measurements.

U.S. Navy Method
Uses waist, neck, and hip measurements
3-Site Skinfold Method
Requires skinfold calipers
Diagonal fold on chest (males) or tricep (females)
Vertical fold beside navel
Vertical fold on front of thigh
Body Fat Categories
Men
  • 2-5% Essential Fat
  • 6-13% Athletes
  • 14-17% Fitness
  • 18-24% Average
  • 25%+ Obese
Women
  • 10-13% Essential Fat
  • 14-20% Athletes
  • 21-24% Fitness
  • 25-31% Average
  • 32%+ Obese

FAQs – Body Fat Calculator

What is a Body Fat Calculator?

A Body Fat Calculator estimates the percentage of your total body weight that comes from fat. It uses methods such as the U.S. Navy formula or skinfold measurements to provide an accurate estimate of body composition.

How is body fat percentage calculated?

Body fat percentage can be calculated using formulas like the U.S. Navy method, which considers waist, neck, and height measurements, or using skinfold caliper measurements at specific body sites. Both methods provide estimates of body fat levels.

What is a healthy body fat percentage?

A healthy body fat percentage varies by gender and age:

  • Men: 10–20% is generally considered healthy.
  • Women: 18–28% is typically considered healthy.
Athletes may have lower percentages, while higher values may indicate overweight or obesity.

Is BMI the same as body fat percentage?

No, BMI (Body Mass Index) measures body weight relative to height, while body fat percentage measures the actual proportion of fat in your body. Two people with the same BMI can have very different body fat levels depending on muscle mass.

Can I reduce my body fat percentage?

Yes. Regular physical activity, strength training, balanced nutrition, and maintaining a calorie deficit can help reduce body fat percentage. Consistency and lifestyle changes are key for long-term results.

How often should I measure my body fat percentage?

It’s recommended to measure body fat once every 4–6 weeks. This allows you to track meaningful progress without being affected by short-term fluctuations due to hydration or other factors.