Plixi is the best calculator to use in companion with a caliper to accurately calculate body fat percentage. It uses the values taken from pleats (ISAK) along with 3 different formulas for body density and 3 different formulas to get the body fat. Body Density Formulas: - Durnin / Womersley: Ideal for people whose body fat percentage is above 12% on men and 15% on women. - Jackson / Pollock (3 & 7 pleats): Ideal for people whose body fat percentage is under 12% on men and 15% on women. Body F