How to convert in to cm
Use the formula centimetres = inches × 2.54. Type any value in the box above and the answer updates instantly.
Convert inches to centimetres instantly. Includes a reference table and the exact conversion formula.
Frequently asked questions
How many cm is 1 inch?
1 inch equals exactly 2.54 centimetres.
How many cm is 12 inches?
12 inches equals 30.48 centimetres.
Is 1 inch 2.5 cm?
It is 2.54 cm. Rounding to 2.5 is fine for rough estimates.