Inches to Cm Converter
Enter a value in inches to convert it to centimeters — 1 in = 2.54 cm.
Reviewed by the ToolNestr Editorial Team — July 2026
How to convert inches to centimeters
Converting inches to centimeters is a simple multiplication: take your length in inches and multiply by the fixed conversion factor of 2.54 to get centimeters. Because the factor never changes, the same calculation works for any value, from tiny amounts to very large ones. The converter above applies it the moment you type, with no rounding errors in the underlying maths.
Convert inches from US products and TV sizes into the centimeters used on most rulers and spec sheets. Knowing how to move between inches and centimeters is useful whenever measurements are given in one system but you need them in the other — for shopping, travel, study, cooking, engineering or simply comparing figures from different countries.
The reference table below lists common inches values already converted to centimeters, so you can read off everyday amounts at a glance without typing. For the opposite direction, use the Cm to Inches Converter, which reverses the calculation exactly.
The formula and a worked example
Formula
cm = in × 2.54
Worked example
To convert 10 inches: 10 × 2.54 = 25.4 cm. To convert 25 inches: 25 × 2.54 = 63.5 cm.
Inches to Cm conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 5 | 12.7 |
| 10 | 25.4 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 250 | 635 |
| 500 | 1,270 |
| 1,000 | 2,540 |
Values are rounded for display; the converter above keeps full precision.
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Frequently asked questions
How do I convert inches to centimeters?
Multiply the number of inches by 2.54. For example, 10 in × 2.54 = 25.4 cm. The converter above does this automatically.
How many centimeters are in one inches?
There are 2.54 centimeters in one inches. Multiply by 2.54 for any amount.
Is this Inches to Cm converter accurate?
Yes. It uses the exact conversion factor of 2.54, so results are precise. Values shown in the table are rounded for readability.
How do I convert centimeters back to inches?
Use our Cm to Inches Converter for the reverse direction, or divide the centimeters value by 2.54.