Body fat
Body Fat Calculator
Estimate body fat % with a tape measure using the US Navy method.
Free tool · Body fat
Abs show when there's little enough fat over them. Enter your weight and body fat estimate to see the weight where abs typically start to show and where a sharp six pack usually appears, assuming you keep your muscle.
Results
Assumes you keep your current lean mass. Thresholds vary with genetics and muscle size; treat them as ballpark ranges.
Thicker, more developed ab muscles and favorable fat distribution let some people show abs a few points higher than average.
Use it as a waypoint. Muscle gained or lost changes the right number, so photos and waist measurements are better guides near the end.
Body fat
Estimate body fat % with a tape measure using the US Navy method.
Body fat
Work out how much of your weight is muscle, bone and water.
Body fat
Fat-free mass index: how muscular you are for your height.
Body fat
Body mass index and the healthy weight range for your height.