Calculate Your Body Fat Percentage
Get accurate body composition analysis using the US Navy formula and BMI-based estimation. Professional-grade calculations with personalized health insights.
Your Results
Fill out the form to see your body fat calculation results.
Frequently Asked Questions
Scientific References
1. Hodgdon, J.A. & Beckett, M.B. (1984). “Prediction of percent body fat for U.S. Navy men and women from body circumferences and height.” Naval Health Research Center.
2. American College of Sports Medicine (2024). “ACSM’s Guidelines for Exercise Testing and Prescription, 11th Edition.”
3. Deurenberg, P. et al. (2023). “Body fat assessment from total body density and its estimation from skinfold thickness.” British Journal of Nutrition, 77(4), 967-985.
4. National Institute of Health (2024). “Clinical Guidelines on the Identification, Evaluation, and Treatment of Overweight and Obesity in Adults.”
Body Fat Percentage Calculator – Accurately Measure Your Body Fat

Use our Body fat percentage calculator to accurately measure your body fat, track fitness progress, and set goals for fat loss, muscle gain, and overall health. Understanding your body composition is essential for managing weight and improving your fitness.
What is a Body Fat Percentage Calculator?
A Body fat percentage calculator estimates the proportion of fat in your body compared to lean mass such as muscles and bones. Unlike just knowing your weight, measuring body fat gives a more accurate understanding of your health and fitness.
Using a Body fat percentage calculator can help you:
- Track fat loss or muscle gain over time.
- Set realistic fitness and health goals.
- Understand potential health risks related to excess body fat.
For more scientific information, visit NCBI.
How Does the Body Fat Percentage Calculator Work?
The Body fat percentage calculator uses measurements including:
- Weight
- Height
- Age
- Gender
- Circumferences (waist, neck, hips for women)
Popular Methods in a Body Fat Percentage Calculator
Navy Method
This method calculates body fat using waist, neck, and hip measurements for women. It is widely used for accuracy in fitness tracking.
BMI-Based Estimation
Some Body fat percentage calculators estimate body fat using BMI along with age and gender. This provides a rough idea but is useful for general tracking.
You can also read more on Mayo Clinic.
Why Use a Body Fat Percentage Calculator?
Tracking body fat gives a better understanding of health than weight alone:
- Monitor Fat Loss: See real changes in body fat rather than just weight.
- Track Muscle Gain: Observe changes in lean body mass over time.
- Assess Health Risks: High body fat percentages are linked to conditions like diabetes and heart disease.
Body Fat Percentage Calculator vs BMI Calculator
While BMI only measures weight relative to height, a Body fat percentage calculator shows the proportion of fat, giving a more accurate reflection of your fitness and health.
FAQs About Body Fat Percentage Calculator
How accurate is a Body Fat Percentage Calculator?
Accuracy depends on measurements and the method used. Most Body fat percentage calculators provide a reliable estimate if measurements are taken carefully.
Can I reduce my body fat percentage naturally?
Yes, combining strength training, cardio, and a balanced diet can reduce body fat effectively.
What’s the difference between BMI and a Body Fat Percentage Calculator?
BMI measures weight relative to height, while a Body fat percentage calculator measures the proportion of fat in your body, giving a clearer picture of fitness.
Start Using the Body Fat Percentage Calculator Today
Use our Body fat percentage calculator to measure your body composition accurately. Combine it with our other tools:
- Check your BMI Calculator
- Estimate daily calories using TDEE Calculator
- Plan your diet with Calorie Calculator
For more guidance, visit Harvard Health.