Body fat
Body Fat Calculator
Estimate body fat % with a tape measure using the US Navy method.
Free tool · Body fat
BMI is a quick screening number from height and weight. It's useful at a population level but can't see muscle, so treat it as one data point, not a verdict.
Results
BMI can't tell muscle from fat, so lean, muscular people often read as overweight. Pair it with a body fat estimate.
Often not. Muscular people can read as overweight with low body fat. Waist-to-height ratio or a body fat estimate is more telling.
There isn't one. Visible abs depend on body fat, not BMI.
Body fat
Estimate body fat % with a tape measure using the US Navy method.
Body fat
See the body fat % and weight where your abs should start to show.
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.