Body Fat Calculator See Your Body Composition More Clearly
Enter your measurements to estimate body fat percentage, fat mass, lean body mass, and a general category using the U.S. Navy circumference formula.
Enter Your Measurements
Use a flexible measuring tape and take each measurement while standing relaxed.
Your Body Composition Breakdown
Your measurements were analyzed successfully.
Estimated weight of fat in your body
Muscle, bone, water, and other fat-free tissue
A separate measure that does not distinguish fat from muscle
Turn This Estimate Into a Practical Plan
Use your body fat estimate and weight to set calories and macros, then track how your measurements change over time.
🔒 Your latest result is stored locally on this device only. You can remove it by clearing the site or app data.
Body Fat Reference Ranges for Men and Women
These are general reference ranges. Their meaning can vary with age, health status, and athletic goals.
Helpful Gear for More Consistent Progress
You do not need any product to use this calculator. These optional tools may make nutrition and training easier to track.
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Do More Than Read the Number
Build your next steps in order: understand your body composition, set your calorie target, plan your macros, and track your routine.
Keep Your Tools and Progress in One Place
Create a free account to access your dashboard, nutrition tools, and progress features in one place.
Before You Rely on the Estimate
Is the Calculator 100% Accurate?
No. This is an estimate that depends on your measurement accuracy and the formula used. Its best use is tracking the trend when you measure the same way each time.
When Is the Best Time to Measure?
Measure under similar conditions, such as in the morning before eating, and use the same tape and measurement technique each time you compare results.
Why Do You Ask for Weight if the Formula Uses Circumferences?
Weight is not used to calculate the percentage itself, but it lets us estimate fat mass and lean body mass so the result is more useful.
Is BMI More Useful Than Body Fat Percentage?
They are different estimates. BMI uses only weight and height, while body fat percentage attempts to describe body composition more directly.
Found This Calculator Helpful?
Share it with someone who may find it useful for tracking body-composition changes.
Helpful Reads for Your Next Step
Use your estimate to make practical decisions about nutrition, training, and progress tracking.