Convert inches to centimeters
1 inch equals 2.54 centimeters. Type any number below — the other side updates instantly.
Inches to centimeters — quick reference
| inches | centimeters |
|---|---|
| 0.5 in | 1.27 cm |
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 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 |
| 15 in | 38.1 cm |
| 18 in | 45.72 cm |
| 24 in | 60.96 cm |
| 30 in | 76.2 cm |
| 36 in | 91.44 cm |
| 48 in | 121.92 cm |
| 60 in | 152.4 cm |
| 65 in | 165.1 cm |
| 70 in | 177.8 cm |
| 72 in | 182.88 cm |
| 75 in | 190.5 cm |
| 80 in | 203.2 cm |
How to convert
Multiply the number of inchs by 2.54 to get centimeters. To go the other way, multiply centimeters by 0.393701 to get inchs. The conversion factor is fixed and exact, so you can use this on any value.
About these units
Inches
- Definition
- An inch (symbol: in) is a unit of length in the imperial and US customary systems, defined as exactly 25.4 mm. There are 12 inches in a foot.
- History
- The word inch derives from the Latin uncia ("one-twelfth"). Standards historically included the length of three barley grains end-to-end.
- Current use
- The inch is dominant in the United States, Canada, and the UK. It is used worldwide for screen sizes (TVs, laptops, phones) and certain engineering standards.
Centimeters
- Definition
- A centimeter (symbol: cm) is one-hundredth of a meter, the SI base unit of length. 1 cm equals 10 mm or about 0.394 inches.
- History
- The centimeter dates to the 1799 establishment of the metric system. The "centi-" prefix means one-hundredth in Latin.
- Current use
- Used worldwide for everyday measurements — body height, clothing sizes, paper, furniture — anywhere imperial countries would use inches.
Frequently asked
- How many centimeters are in 1 inch?
- 1 inch = 2.54 centimeters.
- How do you convert inches to centimeters?
- Multiply the number of inchs by 2.54 to get centimeters. To go the other way, multiply centimeters by 0.393701 to get inchs. The conversion factor is fixed and exact, so you can use this on any value.
- What is 18 inches in centimeters?
- 18 inches = 45.72 centimeters.
Convert inches to other length units
Convert other length units to centimeters
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