Convert Inch [international, U.S.] to Millimeter - Free Calculator
Fast, accurate length conversion calculator. Convert inch [international, u.s.] to millimeter instantly with precise results.
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How to Convert Inch [international, U.S.] to Millimeter
Use this free online calculator to convert Inch [international, U.S.] to Millimeter instantly. This length conversion tool provides accurate results for all your measurement needs.
Quick Reference
Inch [international, U.S.] to Millimeter Conversion Formula
To convert Inch [international, U.S.] to Millimeter, multiply by 25.4.
To convert Millimeter back to Inch [international, U.S.], divide by 25.4 (or multiply by 0.0393701).
About These Units
About Inch [international, U.S.]
The inch is a traditional measurement of distance equal to 1/12 of a foot, or exactly 2.54 centimeters. The Old English word "ynce" is derived from the Latin uncia, meaning a 1/12 part. It follows that "inch" and "ounce" actually have the same origin. The inch was originally defined in England in two ways: as the length of three barleycorns laid end to end, or as the width of a man's thumb at the base of the nail. The barleycorn definition is peculiarly English, but the thumb-width definition is generic. In many european languages the word for inch actually also means thumb: examples include the Dutch duim, Swedish tum, French pouce, and Spanish pulgada. In the history of English units the inch seems to come before the foot, as after the Norman conquest of 1066, the foot was defined as 12 inches, rather than the inch being defined as 1/12 foot.
About Millimeter
The millimeter (or millimetre) is one of the most common metric units of distance. One millimeter is exactly one thousandth of a meter. The millimeter is also an engineering standard unit.
Inch [international, U.S.] to Millimeter Conversion Table
| Inch [international, U.S.] | Millimeter | Millimeter | Inch [international, U.S.] |
|---|---|---|---|
| 0.1 | 2.54 | 0.1 | 0.00393701 |
| 0.5 | 12.7 | 0.5 | 0.019685 |
| 1 | 25.4 | 1 | 0.0393701 |
| 2 | 50.8 | 2 | 0.0787402 |
| 5 | 127 | 5 | 0.19685 |
| 10 | 254 | 10 | 0.393701 |
| 20 | 508 | 20 | 0.787402 |
| 25 | 635 | 25 | 0.984252 |
| 50 | 1,270 | 50 | 1.9685 |
| 100 | 2,540 | 100 | 3.93701 |
| 250 | 6,350 | 250 | 9.84252 |
| 500 | 12,700 | 500 | 19.685 |
| 1000 | 25,400 | 1000 | 39.3701 |
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