Inches to Centimeters converter

Type a value in either box and the other fills in instantly — no button, no waiting.

Type in either box — the other updates instantly.

Quick reference

InchesCentimeters
1 inches2.54 centimeters
2 inches5.08 centimeters
5 inches12.7 centimeters
10 inches25.4 centimeters
25 inches63.5 centimeters
50 inches127 centimeters
100 inches254 centimeters

About this tool

1 inch = exactly 2.54 centimeters, by international definition. Multiply inches by 2.54. Like every tool on this site, the conversion happens on your device — the numbers you type never leave your browser.

Common questions

How do I convert inches to centimeters by hand? 1 inch = exactly 2.54 centimeters, by international definition. Multiply inches by 2.54.

Is this converter exact? It uses the standard defined conversion factors and rounds the display to at most 6 decimal places — more precision than any tape measure, scale, or recipe can use.

Private by design: this tool runs entirely in your browser. Nothing you type or open here is uploaded, stored, or tracked.