Millimeters to Inches

From

Enter the value in millimeters

To

Value in inches

Formula

in = mm / 25.4

Solution

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Answer

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Reverse conversion from Inches to Millimeters is available.

Common Cases

1 mm to inches? 1 mm = 0.039 in
10 mm to inches? 10 mm = 0.394 in
25.4 mm to inches? 25.4 mm = 1 in
50 mm to inches? 50 mm = 1.969 in
100 mm to inches? 100 mm = 3.937 in

Facts

One inch is exactly 25.4 millimeters by international agreement since 1959.
Millimeters are commonly used in engineering, manufacturing, and science.
Rainfall is typically measured in millimeters worldwide.
A US dime coin is about 1.35 mm thick.

Last Updated 2026-02-24 12:20:00 UTC

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