Convert Inch to Millimeter
Converting from in to mm
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Information:
- The SI base unit for length is the meter (m).
- 1 inch = 2.54 centimeters exactly.
- 1 mile = 1.60934 kilometers.
- 1 nautical mile = 1.852 kilometers.
Conversion Details & Formula
Formula:
Result (mm) = Input Value (in) × 25.4
The conversion factor is derived from SI base unit conversions: (0.0254 / 0.001)
Unit Relationship:
- 1 in (Inch) = 25.4 mm (Millimeter)
- 1 mm (Millimeter) = 0.0393701 in (Inch)
Equivalence to SI Base Unit (m):
- 1 in (Inch) = 0.0254 m
- 1 mm (Millimeter) = 0.001 m