Body Fat Calculator
Calculate body fat percentage using tape measurements.
Tape method
Body fat categories
Fat vs lean mass
Circumference method
Tape measurements provide a practical estimate of body fat using proven formulas. Accuracy improves with consistent measuring technique.
Assumptions
This estimate uses the U.S. Navy circumference formula and assumes accurate tape placement. For valid results, height and neck must be greater than zero, and waist must exceed neck (men) or waist + hip must exceed neck (women).
Tracking progress
Use the same tape, time of day, and measurement points to track changes over time.