CONVERT INCH TO MM

Enter Inches:
 
⇋swap
Millimeters result:
Meters+millimeters result:
Calculation


Inches Millimeters

How to convert inch to mm

1 inch is equal to 25.4 millimeters:

1″ = 25.4mm

The distance d in millimeters (mm) is equal to the distance d in inches (″) times 25.4:

d(mm) = d(″) × 25.4

Example

Convert 20 inches to millimeters:

d(mm) = 20″ × 25.4 = 508mm

Inches to millimeters conversion table

Inches (“)Millimeters (mm)
0.01 ″0.254000 mm
1/64 ″0.396875 mm
1/32 ″0.793750 mm
1/16 ″1.587500 mm
0.1 ″2.540000 mm
1/8 ″3.175 mm
1/4 ″6.35 mm
1/2 ″12.7 mm
1 ″25.4 mm
2 ″50.8 mm
3 ″76.2 mm
4 ″101.6 mm
5 ″127.0 mm
6 ″152.4 mm
7 ″177.8 mm
8 ″203.2 mm
9 ″228.6 mm
10 ″ 254.0 mm
20 ″508.0 mm
30 ″762.0 mm
40 ″1016.0 mm
50 ″1270.0 mm
60 ″1524.0 mm
70 ″1778.0 mm
80 ″2032.0 mm
90 ″2286.0 mm
100 ″2540.0 mm