The standard bodyfat calculators are typically parameterised using average populations and generally not athletes. The calculator below is specifically for the female athlete and uses skin folds, weight and age.
Measure the skin folds when the skin is dry, before exercise, and when you're not overheated. Measure each skinfold 3 times and use the 2 which agree. Pinch from the top and measure from the bottom. (Directions to take skinfolds are given after the calculator.)
Enter these values in the tables below and press 'calculate body fat'.
The 2 Site Skin Fold:
- SITE 1 - ABDOMINAL. A vertical skinfold measurement taken 2.5 cm (one inch) to the right of the umbilicus (navel).
- SITE 2 - THIGH. A vertical skinfold measurements taken half the distance between the patella (knee cap) and the inguinal crease (the skin crease between the thigh and the hip). The leg should be straight and relaxed.
A Skinfold Model to Predict Fat-Free Mass in Female Athletes
Evelyn R. Warner, Willa C. Fornetti, Jennifer J. Jallo, and James M. Pivarnik
J Athl Train. 2004 Jul-Sep; 39(3): 259-262.