The inch (symbol: in or ″) is a unit of length in the British Imperial and the United States customary systems of measurement. It is equal to ⁠ 1 36 ⁠ yard or ⁠ 1 12 ⁠ of a foot.

Definition: An inch (symbol: in) is a unit of length in the imperial and US customary systems of measurement. An inch was defined to be equivalent to exactly 25.4 millimeters in 1959.

Inches are a unit of measurement equal to 1/12 of a foot or 2.54 centimeters. Learn more about the usage, origin, and history of the inch.

inch, unit of British Imperial and United States Customary measure equal to 1/36 of a yard. The unit derives from the Old English ince, or ynce, which in turn came from the Latin unit uncia, which was …

The meaning of INCH is a unit of length equal to 1/36 yard. How to use inch in a sentence. Did you know?

Easily convert between Inches to Centimeters, with algebraic formula, lookup chart, and conversions to common lengths.

inch 1 (ɪntʃ) n. 1. a unit of length, 1/12 of a foot, equivalent to 2.54 centimeters. 2. a very small amount, degree, or distance: averted disaster by an inch.