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 |
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