In the U.S., the common symbol for feet is the apostrophe ('), while the symbol for inches is commonly the quote (“).

How do you abbreviate feet and inches?

What is this? Feet is either abbreviated in letters, “ft.” or marked with an apostrophe ('). We use a single apostrophe for feet and a double apostrophe for inches (”).

What is the foot symbol?

The foot (plural foot or feet; symbol or abbreviation: ft or the single prime ′ ) is a unit of length in the Imperial and U.S. customary systems of measurement. It is equal to 12 inches or one third of a yard.