Inches ↔ cm
CopiedAbout this inches ↔ centimeters converter
Length both ways using the international inch definition.
1 inch = 2.54 cm exactly. cm = inches × 2.54; inches = cm ÷ 2.54.
Not a fractional-inch carpentry notation helper beyond what the inputs accept, and not a surveyor’s unit converter.
How many centimeters in an inch?
1 in = 2.54 cm exactly (international inch, 1959).
Is this the US survey inch?
No. This page uses the international inch, 2.54 cm exact.
Is anything stored?
No. The math stays in your browser.
Nothing is stored. Runs in your browser.