About the Body Fat Calculator
Estimate body fat percentage with nothing but a tape measure, using the US Navy circumference method. Enter neck, waist (and hip for women) measurements to get your body fat percentage and fitness category.
Like every Pixveil tool, this calculator runs 100% in your browser — the numbers you enter are never uploaded, stored, or seen by anyone, and results appear instantly with every keystroke. Use it as often as you like, on any device, free forever, with no account and no ads chasing you around.
Results are estimates for general information only and are not medical advice. Talk to a healthcare professional before making significant changes to your diet or exercise.