bmi calculator

Skinfold calipers measure the thickness of a skinfold in millimeters. You read the millimeter value on the caliper and then use the included body‑fat chart or guide to convert that measurement into an estimated body‑fat percentage.

Typical skinfold protocols measure four key sites: biceps, triceps, subscapular, and suprailiac.

A typical kit includes the caliper itself plus an instructional manual and a body‑fat percentage chart or guide to interpret measurements.

These calipers are typically made from plastic and use a spring‑loaded mechanism (often with metal springs) to apply consistent tension for reliable readings.

Care instructions vary by model, so check the manufacturer’s guidance. Common recommendations are not to submerge or machine wash the caliper; instead, clean it by spot cleaning or wiping with a damp cloth.

Calipers provide a millimeter measurement of a skinfold. That measurement is typically used with a body‑fat percentage chart or guide supplied with the caliper to interpret the reading as an estimated body‑fat percentage.