Body Composition Tool
Body Fat Calculator
Estimate your body fat percentage using body measurements and a simple calculation method.
Enter Your Measurements
This calculator uses height, neck, waist, and hips if needed.
Measurement Unit
Your body fat estimate will appear here after calculation.
What Is Body Fat Percentage?
Body fat percentage shows how much of your total body weight comes from fat. It can provide a clearer picture of body composition than body weight alone.
How This Calculator Works
This page uses the U.S. Navy body fat formula, which estimates body fat percentage from body measurements such as neck, waist, height, and hips for women.
FAQ
Is body fat better than BMI?
Body fat percentage often gives more useful information about body composition than BMI alone.
Is this exact?
No. It is an estimate, but it can still be useful as a general guide.
Why do women need hip measurement?
The formula for women includes hips as part of the body fat estimate.
Healthy Body Fat Percentage
Healthy body fat ranges can vary depending on age, gender, activity level, and fitness goals. Athletes often have lower body fat percentages than the average person, while very high body fat levels may increase health risks.
Body fat percentage can provide a more useful picture of body composition than body weight alone, because two people with the same weight may have very different amounts of muscle and fat.
Body Fat and Fitness Goals
Many people use body fat percentage to track weight loss, muscle gain, and overall fitness progress. Lower body fat levels are often associated with more visible muscle definition.
Tips to Reduce Body Fat
- Maintain a moderate calorie deficit.
- Eat enough protein to support muscle mass.
- Exercise regularly with strength training and cardio.
- Get enough sleep and recovery.
- Drink enough water during the day.
Body Fat vs BMI
BMI estimates body size using height and weight, while body fat percentage estimates how much of your body weight comes from fat tissue. Many people consider body fat percentage more useful for fitness tracking.
Body Fat Calculator FAQ
What is a good body fat percentage?
Healthy ranges vary, but lower values are usually seen in athletes, while average healthy ranges are higher for most adults.
Can body fat change quickly?
Body fat changes usually happen gradually through long-term diet and exercise habits.
Is the U.S. Navy method accurate?
It is considered a useful estimate, but results may not match professional body scans exactly.
Related Calculators
Try our BMI Calculator, Calorie Calculator, Protein Calculator, and All Health Calculators.