1 mm to inches
Convert 1 millimeters to inches — the answer, the arithmetic and the closest common values, all on one page.
Show your work
1 mm × 0.03937 = 0.03937008 in.
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Questions
What is 1 millimeters in inches?
1 mm = 0.03937008 in. The arithmetic: 1 mm × 0.03937 = 0.03937008 in.
How precise is this result?
The factor is exact by definition, so the only rounding is the display. Higher precision is available on the mm to in converter page.
What is 1 in in mm?
1 in = 25.4 mm — the inverse direction.