Body Fat Calculator — Jackson-Pollock 3 & 7 Site

Measurement protocol — keep this consistent

Always measure on the right side of the body.
Use the same landmark every time for each site — see the exact spot for each below.
Pinch the skinfold firmly, about 1 cm from where the caliper jaws will sit.
Measure under the same conditions each time: morning, pre-training, pre-food, normal hydration.

Exactly where to measure each site

Chest: Diagonal fold, halfway between the armpit crease and the nipple (about one-third of that distance for women).
Abdomen: Vertical fold about 2 cm to the right of the navel.
Thigh: Vertical fold on the front of the thigh, midway between the hip crease and the top of the kneecap. Weight on the other leg.
Midaxillary: Vertical fold on the mid-armpit line, level with the bottom of the breastbone (xiphoid process).
Triceps: Vertical fold on the back of the upper arm, midway between the point of the shoulder and the point of the elbow, arm relaxed at your side.
Subscapular: Diagonal fold (about 45°), 1–2 cm below the bottom tip of the shoulder blade.
Suprailiac: Diagonal fold just above the hip bone (iliac crest), in line with the front of the armpit.

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