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Length conversion ยท The exact answer, the formula, nearby values, and the full chart
12 in = 30.48 cm
12 inches is exactly 30.48 centimeters. The working is shown below โ every figure on this page is computed with the exact conversion factor, not copied from a rounded chart.
12 ร 2.54 = 30.48 โ so 12 in is 30.48 cm.
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| Inch (in) | Centimeter (cm) |
|---|---|
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.4 cm |
| 11 in | 27.94 cm |
| 12 inthis page | 30.48 cm |
| 13 in | 33.02 cm |
| 14 in | 35.56 cm |
| 15 in | 38.1 cm |
| 16 in | 40.64 cm |
| 17 in | 43.18 cm |
12 in is exactly 30.48 cm. The figure is computed with the exact conversion formula, not rounded from a chart: 12 ร 2.54 = 30.48 โ so 12 in is 30.48 cm.
Centimeter = Inch ร 2.54 โ so multiply any in figure by 2.54. To go the other way, divide by the same factor.
Multiply by 2.5 โ about 1.6% under the exact 2.54. For 12 in that gives 30 cm against the exact 30.48 cm.
Use the Inch to Centimeter converter on this page for any value, or open the printable inch to centimeter chart to look up the whole range at a glance.
Need the opposite direction? Use the Centimeter to Inch Converter to convert centimeter back to inch.
Browse every tool in this category on the Length Converter hub page.