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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.

By Healthwise Staff
Primary Medical Reviewer E. Gregory Thompson, MD - Internal Medicine
Specialist Medical Reviewer Anne C. Poinier, MD - Internal Medicine
Last Revised June 9, 2009

WebMD Medical Reference from Healthwise

Last Updated: June 09, 2009
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