Inches to Millimeters
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in
mm
Quick reference
| Inches (in) | Millimeters (mm) |
|---|
Formula
millimeters = inches × 25.4
Multiply the inches value by 25.4 to get millimeters. To reverse — divide millimeters by 25.4 to get inches.
About this conversion
The inch (in) is an imperial unit equal to exactly 25.4 millimeters. Learn more →
The millimeter (mm) is a metric unit equal to one thousandth of a meter. Learn more →
Source: NIST International Reference