Inches to Feet Converter

Convert inches to feet instantly.

Common length units

Inch (in)

Definition: An inch (symbol: in or ") is a unit of length in the imperial and US customary systems of measurement. Since 1959, one inch has been defined as exactly 25.4 millimeters. There are 12 inches in a foot and 36 inches in a yard.

History/origin: The word inch derives from the Latin uncia, meaning one-twelfth. Early definitions were based on natural references: the width of a human thumb or the length of three barleycorns placed end to end. The modern standardized definition was agreed upon internationally in 1959.

Current use: The inch remains in common use in the United States, Canada, and the United Kingdom, particularly for human height, screen sizes, and construction materials such as lumber and pipes.

Foot (ft)

Definition: The foot is an imperial and US customary unit made of 12 inches. Since standardization, one ft equals exactly 0.3048 m.

History/origin: Many societies used foot-like measures because the body offered a handy reference. Modern English-speaking standards later replaced local variation with a fixed international value.

Current use: Ft is used for room dimensions, ceiling height, elevation, aircraft altitude, human height, sports measurements, construction plans, and real estate listings.