The body fat calculation is based both on weight and waist size and is exquisitely sensitive to the value for waist. The measurements tend to be most accurate in the morning after you go to the bathroom and before you consume any food or liquid. If you lower the value for the weight without changing the waist the calculation considers this as a loss of muscle mass and hence the percent body fat goes up. Keep your waist to less than half your height that means someone who is 5 foot 5 65 inches. Woolcott richard n. The waist to height ratio to body fat percentage formula comes from relative fat mass rfm as a new estimator of whole body fat percentage a cross sectional study in american adult individuals orison o.
It depends on a range of factors including age sex body type bone density muscle fat ratio overall general health and height. Step on the scale to determine. Body fat for men step 1. Body fat percentage and dxa to caliper to conversion methodology. The caliper and dxa conversion methodology can be found inside our body fat. Body fat percentage fat mass 100 body weight for your waist circumference its best to measure at the same time of day each time.
Use your last recorded height measurement at the doctors office or use a tape measure to determine your height. The percentage body fat is calculated for males as 100 9842 415waist 0082weightweight and for females as 100 7676 415waist 0082weightweight. Measure your neck. The idea of a healthy weight may also differ between countries. Remove your clothing and use the bathroom when you get out of bed in the morning. Ashwell has proposed that governments adopt a simple public health message.