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Home > Health Library > Millimeter (mm)
A millimeter measures length that is equal to 1/10 of a centimeter. It also equals 0.04 inch. There are 25.4 millimeters in one inch.
Current as of: June 17, 2021
Author: Healthwise Staff
Medical Review:Anne C. Poinier MD - Internal Medicine & Adam Husney MD - Family Medicine & Martin J. Gabica MD - Family Medicine
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