1 in = 2.54 cm
1 Inch (in) = 2.54 Centimeter (cm).
If you want to reverse convert, use Centimeter → Inch. 1 cm = 0.39370078740157 in. You can also explore the full Length converter page for more cross conversions.
Conversion formula
Inch to Centimeter formula: value in cm = value in in × 2.54.
Centimeter to Inch formula: value in in = value in cm × 0.39370078740157.
How to convert Inch to Centimeter
To convert Inch to Centimeter, multiply the value in in by 2.54. This gives the result in cm.
For example, 1 in = 2.54 cm and 10 in = 25.4 cm.
What is Inch?
Inch (in): Used for screen diagonals, pipe sizes and component dimensions. A screen’s inch size refers to its diagonal rather than its width. 1 in = 2.54 cm = 25.4 mm.
What is Centimeter?
Centimeter (cm): One hundredth of a metre. It is useful for ruler measurements, book widths and a person’s height; kilometres would be impractical for these small dimensions. 1 cm = 10 mm = 0.01 m.
FAQ
How many centimeter are in 1 inch?
There are 2.54 cm in 1 in.
Why can conversion results differ slightly?
Check the unit definition and rounding. US and imperial measures can differ; rounding intermediate values can also change the final digits.
How do I convert inch to centimeter?
Multiply the value in in by 2.54 to get the value in cm.
Inch → other Length units
- 1 inch → meter = 0.0254 meter
- 1 inch → kilometer = 2.54E-5 kilometer
- 1 inch → decimeter = 0.254 decimeter
- 1 inch → centimeter = 2.54 centimeter
- 1 inch → millimeter = 25.4 millimeter
- 1 inch → micrometer = 25400 micrometer
- 1 inch = 25400000 nanometer
- 1 inch = 25400000000 picometer
- 1 inch → nautical mile = 1.3714902807775E-5 nautical mile
- 1 inch → mile = 1.5782828282828E-5 mile
- 1 inch → fathom = 0.013888888888889 fathom
- 1 inch → yard = 0.027777777777778 yard
- 1 inch → feet = 0.083333333333333 feet
- 1 inch → hand = 0.25 hand
- 1 inch = 1.6978851290562E-13 astronomical unit
- 1 inch = 2.6847821184225E-18 lightyear
- 1 inch = 8.2315793951886E-19 parsec
Inch → Centimeter Table
The table below shows common values from Inch to Centimeter and the reverse direction for quick reference.
| in | cm | Rounded |
|---|---|---|
| 1 in | 2.54 cm | 2.5400 |
| 2 in | 5.08 cm | 5.0800 |
| 3 in | 7.62 cm | 7.6200 |
| 4 in | 10.16 cm | 10.1600 |
| 5 in | 12.7 cm | 12.7000 |
| 10 in | 25.4 cm | 25.4000 |
| 12 in | 30.48 cm | 30.4800 |
| 15 in | 38.1 cm | 38.1000 |
| 20 in | 50.8 cm | 50.8000 |
| 25 in | 63.5 cm | 63.5000 |
| 30 in | 76.2 cm | 76.2000 |
| 40 in | 101.6 cm | 101.6000 |
| 50 in | 127 cm | 127.0000 |
| 75 in | 190.5 cm | 190.5000 |
| 100 in | 254 cm | 254.0000 |
| 200 in | 508 cm | 508.0000 |
| 250 in | 635 cm | 635.0000 |
| 500 in | 1270 cm | 1270.0000 |
| 750 in | 1905 cm | 1905.0000 |
| 1000 in | 2540 cm | 2540.0000 |
| 2500 in | 6350 cm | 6350.0000 |
| 5000 in | 12700 cm | 12700.0000 |
| 10000 in | 25400 cm | 25400.0000 |
Centimeter → Inch Table
| cm | in | Rounded |
|---|---|---|
| 1 cm | 0.39370078740157 in | 0.3937 |
| 2 cm | 0.78740157480315 in | 0.7874 |
| 3 cm | 1.1811023622047 in | 1.1811 |
| 4 cm | 1.5748031496063 in | 1.5748 |
| 5 cm | 1.9685039370079 in | 1.9685 |
| 10 cm | 3.9370078740157 in | 3.9370 |
| 12 cm | 4.7244094488189 in | 4.7244 |
| 15 cm | 5.9055118110236 in | 5.9055 |
| 20 cm | 7.8740157480315 in | 7.8740 |
| 25 cm | 9.8425196850394 in | 9.8425 |
| 30 cm | 11.811023622047 in | 11.8110 |
| 40 cm | 15.748031496063 in | 15.7480 |
| 50 cm | 19.685039370079 in | 19.6850 |
| 75 cm | 29.527559055118 in | 29.5276 |
| 100 cm | 39.370078740157 in | 39.3701 |
| 200 cm | 78.740157480315 in | 78.7402 |
| 250 cm | 98.425196850394 in | 98.4252 |
| 500 cm | 196.85039370079 in | 196.8504 |
| 750 cm | 295.27559055118 in | 295.2756 |
| 1000 cm | 393.70078740157 in | 393.7008 |
| 2500 cm | 984.25196850394 in | 984.2520 |
| 5000 cm | 1968.5039370079 in | 1968.5039 |
| 10000 cm | 3937.0078740157 in | 3937.0079 |
Centimeter → Inch
The reverse value is 1 cm = 0.39370078740157 in.