How to Use Our Body Fat Percentage Calculator

3 min read

How to Use Our Body Fat Percentage Calculator

Body fat percentage is a far more meaningful health metric than weight alone. Our Body Fat Percentage Calculator estimates your body fat using the U.S. Navy method, which requires just a few simple measurements.

Taking Your Measurements

You will need a flexible measuring tape:

• Neck Circumference -- Measure around your neck just below the larynx (Adam's apple), keeping the tape level.
• Waist Circumference -- Measure at the narrowest point of your waist, typically at the navel. Keep the tape snug but not compressing the skin.
• Hip Circumference (women only) -- Measure at the widest point of your hips and buttocks.
• Height -- Your standing height.

Measure first thing in the morning for the most consistent results. Take each measurement twice and use the average.

Understanding Your Results

General body fat percentage ranges:

Men:

• Essential fat: 2-5%
• Athletes: 6-13%
• Fitness: 14-17%
• Average: 18-24%
• Above average: 25%+

Women:

• Essential fat: 10-13%
• Athletes: 14-20%
• Fitness: 21-24%
• Average: 25-31%
• Above average: 32%+

Accuracy Notes

The Navy method is an estimate accurate to within roughly 3-4% for most people. For more precise measurements, consider DEXA scans, hydrostatic weighing, or professional caliper testing. However, the Navy method is excellent for tracking trends over time -- even if the absolute number is slightly off, the direction of change is reliable.

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