Should Millimeters Be Capitalized?

3 Answers. No, units generally do not need capitalization when spelled out. For SI units, the Bureau International des Poids et Mesures is the authority: Unit names are normally printed in roman (upright) type, and they are treated like ordinary nouns.

Do you capitalize the l in mL?

The unit symbol for the unprefixed form of liter on Wikipedia is uppercase L, e.g. “A 5.0 L engine” or “one gallon (3.78 L)”. The unit symbols for prefixed forms of the liter may be either the uppercase or lowercase forms of L, ml / mL and µl / µL, whichever is most common for that discipline.

Should units of measurement be capitalized?

Units of Measure.

Do not capitalize a unit of measure unless the abbreviation contains a capital letter.