Body Fat Calculator
Estimate your total body fat based on specific measurements
Metric Units
US Units
Other Units
Body Fat Results
Body Fat (U.S. Navy Method):
Body Fat Category:
–
Body Fat Mass:
–
Lean Body Mass:
–
Ideal Body Fat for Given Age:
–
Body Fat to Lose to Reach Ideal:
–
Body Fat (BMI method):
–
Body Fat Percentage
0%
of your body is fat
Body Fat Categorization
| Description | Women | Men |
|---|---|---|
| Essential fat | 10-13% | 2-5% |
| Athletes | 14-20% | 6-13% |
| Fitness | 21-24% | 14-17% |
| Average | 25-31% | 18-24% |
| Obese | 32+% | 25+% |
Jackson & Pollock Ideal Body Fat Percentages
| Age | Women | Men |
|---|---|---|
| 20 | 17.7% | 8.5% |
| 25 | 18.4% | 10.5% |
| 30 | 19.3% | 12.7% |
| 35 | 21.5% | 13.7% |
| 40 | 22.2% | 15.3% |
| 45 | 22.9% | 16.4% |
| 50 | 25.2% | 18.9% |
| 55 | 26.3% | 20.9% |
The American Council on Exercise Body Fat Categorization
Body Fat Calculator - Plain Explanation
This Body Fat Calculator helps you estimate your total body fat percentage using specific body measurements.
How to Use It
You can choose between measurement systems:
- Use the "Metric Units" tab if you prefer centimeters and kilograms (International System of Units)
- Use other tabs for different measurement systems if available
For Best Results
- Measure carefully to the nearest ¼ inch (or 0.5 cm)
- Be consistent with how you take measurements
Calculation Methods
The calculator uses two different methods:
- U.S. Navy Method - Uses measurements of your neck, waist, and (for women) hips to estimate body fat
- BMI Method - Uses your height and weight along with age to estimate body fat
Both methods provide estimates rather than exact measurements, but can give you a good understanding of your body composition.
What You'll Need to Measure
Depending on the method, you may need:
- Your height
- Your weight
- Neck circumference
- Waist circumference
- Hip circumference (for women)
After entering your measurements, the calculator will provide your estimated body fat percentage and explain what that number means for your health and fitness.