Mile - Abbreviation and Symbol

Abbreviation and Symbol

There have been several abbreviations for mile (with and without trailing period): mi, ml, m, M. In the United States, the National Institute of Standards and Technology now uses and recommends mi, which avoids confusion with metres, millilitres, etc., but in everyday usage (at least in the United States, United Kingdom, and Canada), units such as miles per hour and miles per gallon are almost always abbreviated as mph or mpg (rather than mi/h or mi/gal).