1 millimeter to inches
1 mm = 0.03937008 in. Change the amount below, or read the formula and the reference table further down.
1 millimeter equals
inches
1 mm = 0.03937008 in
The formula
Millimeters and inches both measure length from the same zero, so a single multiplier does the job.
in = mm × 0.0393700787
Going the other way? Convert inches to millimeters.
Millimeters to inches table
Values either side of 1 mm.
| Millimeters (mm) | Inches (in) |
|---|---|
| -4 | -0.15748 |
| -3.5 | -0.137795 |
| -3 | -0.11811 |
| -2.5 | -0.098425 |
| -2 | -0.07874 |
| -1.5 | -0.059055 |
| -1 | -0.03937 |
| -0.5 | -0.019685 |
| 0 | 0 |
| 0.5 | 0.019685 |
| 1 | 0.03937 |
| 1.5 | 0.059055 |
| 2 | 0.07874 |
| 2.5 | 0.098425 |
| 3 | 0.11811 |
| 3.5 | 0.137795 |
| 4 | 0.15748 |
| 4.5 | 0.177165 |
| 5 | 0.19685 |
| 5.5 | 0.216535 |
| 6 | 0.23622 |
Questions people ask
- How many inches are in a millimeter?
- One millimeter equals 0.0393700787 inches.
- How do I convert millimeters to inches by hand?
- Multiply the number of millimeters by 0.0393700787. For a rough check, 0.039 is close enough for most everyday use.
- What is 1 millimeter in inches?
- 1 millimeter is 0.03937008 inches.
Calcuit generates this page from a unit table, so the factors here match every other page on the site.