Inches to Centimeters Converter
Convert inches to centimeters (cm) instantly. Enter any length in inches to see the equivalent in centimeters, millimeters, and meters. One inch equals exactly 2.54 centimeters.
Formula reviewed for accuracy. Our methodology & sources
inches to cm Converter
unit calculator
How It Works
Since an inch is defined as exactly 2.54 centimeters, the converter multiplies your inch value by 2.54 for an exact result. It also expresses the same length in millimeters for fine work and in meters for larger distances, so you get the most useful scale automatically. This exact, standards-based factor is why the conversion is reliable for everything from sewing to engineering drawings.
Formula
Centimeters = Inches × 2.54
Examples
Convert 12 inches
12 inches equals 30.48 centimeters.
Inches to Centimeters Conversion Table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 2 | 5.08 |
| 3 | 7.62 |
| 4 | 10.16 |
| 5 | 12.70 |
| 6 | 15.24 |
| 9 | 22.86 |
| 12 | 30.48 |
| 18 | 45.72 |
| 24 | 60.96 |
| 30 | 76.20 |
| 36 | 91.44 |
| 48 | 121.92 |
| 60 | 152.40 |
| 72 | 182.88 |
Frequently Asked Questions
How many cm is 1 inch?
1 inch equals exactly 2.54 centimeters. To convert, multiply the number of inches by 2.54.
How many cm is 12 inches?
12 inches (1 foot) equals 30.48 centimeters.
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