Convert 1 Inch to Millimeter

1 in (Inch) is equal to 25.400000000101603 mm (Millimeter). To convert from Inch to Millimeter, multiply by 25.400000000101603 or divide by 0.039370078739999995.

• 1 in × 25.400000000102 = 25.400000000102 mm
• 1 in ÷ 0.03937007874 = 25.400000000102 mm