Convert in to cm instantly — with a table, common fractions, and a live calculator.
1 in equals 2.54 cm.
| in | cm |
|---|---|
| 0.25 in | 0.635 cm |
| 0.5 in | 1.27 cm |
| 0.75 in | 1.91 cm |
| 1 in | 2.54 cm |
| 1.5 in | 3.81 cm |
| 2 in | 5.08 cm |
| 2.5 in | 6.35 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 14.5 in | 36.83 cm |
| 15 in | 38.1 cm |
| 16 in | 40.64 cm |
| 20 in | 50.8 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| cm | in |
|---|---|
| 0.25 cm | 0.0984 in |
| 0.5 cm | 0.197 in |
| 0.75 cm | 0.295 in |
| 1 cm | 0.394 in |
| 1.5 cm | 0.591 in |
| 2 cm | 0.787 in |
| 2.5 cm | 0.984 in |
| 3 cm | 1.18 in |
| 4 cm | 1.57 in |
| 5 cm | 1.97 in |
| 6 cm | 2.36 in |
| 8 cm | 3.15 in |
| 10 cm | 3.94 in |
| 12 cm | 4.72 in |
| 14.5 cm | 5.71 in |
| 15 cm | 5.91 in |
| 16 cm | 6.3 in |
| 20 cm | 7.87 in |
| 24 cm | 9.45 in |
| 36 cm | 14.17 in |
| 50 cm | 19.69 in |
| 100 cm | 39.37 in |
| in | cm |
|---|---|
| 1/16 in | 0.159 cm |
| 1/8 in | 0.318 cm |
| 3/16 in | 0.476 cm |
| 1/4 in | 0.635 cm |
| 3/8 in | 0.953 cm |
| 1/2 in | 1.27 cm |
| 5/8 in | 1.59 cm |
| 3/4 in | 1.91 cm |
| 1 in | 2.54 cm |
| 1 1/4 in | 3.18 cm |
| 1 1/2 in | 3.81 cm |
| 2 in | 5.08 cm |
Inches, feet, yards, and miles belong to the imperial/US system, while millimeters, centimeters, meters, and kilometers are metric. One international inch is defined as exactly 25.4 mm.
Length-to-length conversions are exact and rest on fixed factors — for more unit pairs, use our length conversion hub.
1 in equals 2.54 cm.
2 in equal 5.08 cm.
Multiply the number of in by 2.54 to get cm.
One international inch is defined as exactly 25.4 millimeters. This definition is used worldwide, so the conversions on this page are exact.
Inches, feet, yards, and miles belong to the imperial/US system, while millimeters, centimeters, meters, and kilometers are metric. All conversions rest on fixed, exact factors.
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