Inches to Meters Converter

Convert inches to meters 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.

Meter (m)

Definition: The meter is the SI reference unit for length. Its modern definition is tied to the fixed speed of light, giving all metric length units a precise base.

History/origin: Early metric reformers wanted a universal length standard from nature. The meter moved from Earth-based estimates to artifact bars and finally to a physics-based definition.

Current use: M is used in building plans, athletics, science, surveying, product dimensions, room measurements, manufacturing, and nearly every metric distance calculation.