Body Fat Calculator
Calculate your body fat percentage using measurements. Understand your body composition better than BMI alone.
Body Fat Percentage
How to use the body fat calculator
Calculate your body fat percentage using measurements. Understand your body composition better than BMI alone. This calculator is designed to give you fast results first, then help you compare better options with advanced insights, scenario simulation, and a shareable summary.
Benefits of using this calculator
- Instant result with a human-readable explanation of what the number means.
- Scenario comparison so you can test an optimized plan and a longer-term case.
- Mobile-first design that keeps the calculation and result easy to revisit.
- Related tool suggestions so you can continue planning without starting over.
Body Fat example
A smart way to use this page is to enter your current values first, then compare a slightly improved scenario and a longer-term scenario. That gives you a stronger decision framework than relying on only one output. For many users in India, this helps with quick budgeting, savings planning, health tracking, and household decision-making on mobile.
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How it works: This calculator uses the US Navy formula to estimate your body fat percentage based on age, gender, weight, height, and waist measurement. Body fat percentage is a better indicator of health than weight alone. It shows how much of your body weight is fat vs muscle.
Frequently Asked Questions
What is body fat percentage?
Body fat percentage is the proportion of your body weight that is made up of fat. The rest is lean mass (muscle, bone, organs). It's a more accurate health indicator than BMI because it accounts for muscle mass, which weighs more than fat.
What is a healthy body fat percentage?
Healthy ranges vary by age and gender. For men: 10-20%, for women: 18-25%. Athletes typically have lower percentages (6-13% for men, 14-20% for women). Consult healthcare professionals for personalized guidance.
How accurate is this calculator?
The US Navy formula used here is reasonably accurate (±3-4%) when measurements are taken correctly. More accurate methods include DEXA scans, hydrostatic weighing, or InBody composition analysis. This calculator provides reliable estimates for fitness tracking.
How should I measure waist circumference?
Measure horizontally at the level of your navel (belly button area). Stand straight, relax your stomach (don't suck in), and wrap the measuring tape snugly but not tightly. Accurate measurement is crucial for reliable results.
Why is body fat percentage better than BMI?
Muscular individuals can have "overweight" BMI but low body fat. Body fat percentage directly measures your body composition, so it's more accurate for health assessment. A combination of both metrics provides the best picture of your health.
How do I use this body fat calculator?
Enter the required values, review the instant result, and then use the updated insights and scenario cards to compare alternate cases before making a decision.