How to convert inches to centimeters. 1 inch is equal to 2.54 centimeters: 1? = 2.54cm. The distance d in centimeters (cm) is equal to the distance d in. Usually an inch is exactly 2.54 cm, like they said. But a foot is always 12 inches exactly, and a foot isn’t always 30.48 cm. Surveyors in the US sometimes use. The definition of the inch was set to exactly 2.54cm starting in 1930 (the UK) but wasn’t adopted by all. A glowing commendation for all to see 1Inch is an imperial and United States Customary systems unit of length, equal to 1/12 of a foot. 1 inch = 2.54 cm. The symbol is “in”. What is a Centimeter?Originally Answered: Is 1 inch exactly 2.54 cm? Yes, it’s exact by definition. This ties the inch to the International System of Units (metric system) where.

View this answer now! It’s completely free.