* The inches fraction result is rounded to the nearest 1/64 fraction.
Millimeter (mm) is a unit of length.
One millimeter is equal to 1/1000 of a meter (m).
One millimeter is equal to 1/10 of a centimeter (cm).
One millimeter is eqaul to 1/25.4 of an inch (in).
Inch (in or ″) is a unit of length.
One inch is equal to 1/12 of a foot (ft).
One inch is equal to 1/36 of a yard (yd).
One inch is eqaul to 25.4 millimeters (mm).
1 millimeter is equal to 0.03937007874 inches:
1mm = (1/25.4)″ = 0.03937007874″
The distance d in inches (″) is equal to the distance d in millimeters (mm) divided by 25.4:
d(″) = d(mm) / 25.4
Convert 20 mm to inches:
d(″) = 20mm / 25.4 = 0.7874″
One millimeter is equal to 0.03937 inches:
1mm = 1mm / 25.4mm/in = 0.03937in
One inch is equal to 25.4 millimeters:
1in = 25.4mm/in × 1in = 25.4mm
Divide 10 millimeters by 25.4 to get inches:
10mm = 10mm / 25.4mm/in = 0.3937in
The fraction inches are rounded to 1/64 resolution.
| Millimeters (mm) | Inches (") (decimal) |
Inches (") (fraction) |
|---|---|---|
| 0.01 mm | 0.0004 ″ | 0 ″ |
| 0.1 mm | 0.0039 ″ | 0 ″ |
| 1 mm | 0.0394 ″ | 3/64 ″ |
| 2 mm | 0.0787 ″ | 5/64 ″ |
| 3 mm | 0.1181 ″ | 1/8 ″ |
| 4 mm | 0.1575 ″ | 5/32 ″ |
| 5 mm | 0.1969 ″ | 13/64 ″ |
| 6 mm | 0.2362 ″ | 15/64 ″ |
| 7 mm | 0.2756 ″ | 9/32 ″ |
| 8 mm | 0.3150 ″ | 5/16 ″ |
| 9 mm | 0.3543 ″ | 23/64 ″ |
| 10 mm | 0.3937 ″ | 25/64 ″ |
| 20 mm | 0.7874 ″ | 25/32 ″ |
| 30 mm | 1.1811 ″ | 1 3/16 ″ |
| 40 mm | 1.5748 ″ | 1 37/64 ″ |
| 50 mm | 1.9685 ″ | 1 31/32 ″ |
| 60 mm | 2.3622 ″ | 2 23/64 ″ |
| 70 mm | 2.7559 ″ | 2 3/4 ″ |
| 80 mm | 3.1496 ″ | 3 5/32 ″ |
| 90 mm | 3.5433 ″ | 3 35/64 ″ |
| 100 mm | 3.9370 ″ | 3 15/16 ″ |
