1.- Skin folds should be taken horizontally from all 4 locations shown in Figure A and Figure B.
2.- These show in cross section how the fold of skin and fat is measured.
3.- First pinch the fold of skin with the fingers of one hand as shown in figure C.
4.- Then apply the jaws of the caliper just next to the fingers as shown in figure D and squeeze the calipers using the "press" arm until the 2 arrows line up. Do not read the caliper immediately but allow the jaws to settle into the fold for 2-3 seconds.
5.- Then read the number on the scale. This is the skin fold thickness in millimeters.
6.- Enter each of the 4 readings into the appropiate input fields. Enter your total weight, your age group, your gender, then click on the Calculate button