Body Fat Percentage (BFP) formula for adult males
BFP = 1.20 × BMI + 0.23 × Age - 16.2
Body Fat Percentage (BFP) formula for adult females
BFP = 1.20 × BMI + 0.23 × Age - 5.4
Body fat Percentage (BFP) formula for boys
BFP = 1.51 × BMI - 0.70 × Age - 2.2
Body Fat Percentage (BFP) formula for girls:
BFP = 1.51 × BMI - 0.70 × Age + 1.4