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When you measure the circumference of each body part, the tape should feel firm enough against your skin so that it stays in place. However, it should not be so tight that it causes an indentation. You can use either English or metric units.
The measurements that need to be taken are slightly different for men and women. Men only measure waist circumference, but women also measure other parts of the body, including the hips, wrist, and forearm.
