BMI vs Body Fat Percentage: What's the Difference?
BMI and body fat percentage are different measurements. BMI uses height and weight, while body fat percentage estimates the proportion of your body that is fat.
BMI
BMI is quick and useful as a population-level screening measure, but it cannot distinguish muscle from fat.
Body fat percentage
Body fat percentage can provide additional information about body composition. Methods vary in accuracy, and calculator estimates depend on the measurements used.