Body Fat Percentage Calculator
Estimate body fat percentage using US Navy tape measure method.
Input Parameters
Calculation Results
Formula & How Body Fat Percentage Calculator Works
Estimates body fat composition without specialized bioimpedance or DEXA equipment.
- Enter Biological Sex: Input your target parameter value.
- Enter Height (cm): Input your target parameter value.
- Enter Waist Circumference (cm - at navel): Input your target parameter value.
- Enter Neck Circumference (cm - below larynx): Input your target parameter value.
- Enter Hip Circumference (cm - females only): Input your target parameter value.
- Apply Formula: Calculate using
US Navy Formula based on log10 ratios of body circumferences relative to height. - Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)
How accurate is the US Navy body fat method?
It is typically within 3-4% accuracy compared to DEXA scans.
Authoritative Standards & Verified Reference Citations
Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:
Australia's Physical Activity and Sedentary Behaviour Guidelines and dietary energy expenditure metrics.
Nutrient Reference Values (NRVs) for Australia and New Zealand, macronutrient distribution, and hydration standards.
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