Your Measurements

Enter your body measurements to estimate body fat percentage.

How This Calculator Works

This tool uses the US Navy Body Fat Formula, which estimates body fat using circumference measurements.

Formulas

Male:
495 / (1.0324 βˆ’ 0.19077 Γ— log10(waist βˆ’ neck) + 0.15456 Γ— log10(height)) βˆ’ 450

Female:
495 / (1.29579 βˆ’ 0.35004 Γ— log10(waist + hip βˆ’ neck) + 0.22100 Γ— log10(height)) βˆ’ 450

Example

For a male with:

  • Height: 175 cm
  • Neck: 40 cm
  • Waist: 80 cm

Estimated body fat β‰ˆ 16–18%

FAQ

Is this method accurate?
It provides a good estimate but is not as precise as DEXA scans or calipers.

Why do females need hip measurement?
The formula accounts for typical fat distribution differences.

Can I use inches?
Yes β€” convert to cm first.

Why Body Fat Percentage Matters

Body fat percentage gives a clearer picture of your health than weight alone. This calculator provides a simple, accessible estimate using widely accepted formulas.

What This Tool Helps You Do

Who This Tool Is For

Additional FAQ

Does this include muscle mass?
No β€” this calculator estimates body fat only.

Is this medical advice?
No β€” this is a general fitness estimate for everyday use.