Convert Inches to Millimeters

Inches → Millimeters
in × 25.4 = mm mm × 0.03937008 = in

To convert inches (in) to millimeters (mm), multiply the inches value by 25.4. One inches equals 25.4 millimeters; one millimeters equals 0.03937008 inches. The conversion is a linear scaling with no offset, so the same factor applies to any value.

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