1 Inch to Millimeters
1 in = 25.4 mm
1 inch is equal to 25.4 mm. This conversion uses the standard length conversion factor between inches and mm.
How to Convert
Multiply the inch value by 25.4 1 in = 25.4 mm
Also Equal To
- 1 in = 2.54 cm (Centimeters)
- 1 in = 0.083333 ft (Feet)
Did You Know?
- Precision engineering often requires converting between inches and millimeters.
- A US dime is about 17.91 mm (0.705 inches) in diameter.
Nearby Conversions
Need a different value? Use our full inches to mm converter →