How many centimeters are in one inch?
One inch is exactly 2.54 centimeters.
Convert Inch (in) to Centimeter (cm) instantly.
Choose how you want the answer displayed.
1in=2.54cm
| Quick Conversion | Converted |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 6 in | 15.24 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 60 in | 152.4 cm |
| 72 in | 182.88 cm |
An inch (in or ") is a customary and imperial unit of length.
One inch is equal to 1/12 of a foot (ft), 1/36 of a yard (yd), and exactly 2.54 centimeters (cm).
Same length, two labels
1 in = 2.54 cm
A centimeter (cm), also spelled centimetre, is a metric unit of length in the International System of Units. The centi- prefix means one hundredth.
One centimeter is equal to 1/100 of a meter (m), 10 millimeters (mm), and 1/2.54 of an inch.
Mathematically, centimeter (cm) = inch (in or ") multiplied by the conversion factor shown below.
1 in = 2.54 cm
1 cm = 0.393701 in
1 in x 2.54 = 2.54 cm
The distance in centimeter (cm) is the distance in inch (in or ") multiplied by 2.54.
distance(cm) = distance(in) x 2.54
Or:
cm = in x 2.54
Formula: value × 2.54
Example: 15 in = 38.1 cm
Convert 8 inch to centimeter:
8 in x 2.54 = 20.32 cm
Convert 24 inch to centimeter:
24 in x 2.54 = 60.96 cm
Precision note: Use the exact relationship 1 in = 2.54 cm. Round only after deciding whether the result is for display, sizing, or precise comparison.
1 in = 2.54 cm
1 cm = 0.393701 in
If you are starting with centimeter instead, use the cm to inches page.
| Inch [in] | Centimeter [cm] |
|---|---|
| 0.25 in | 0.635 cm |
| 0.5 in | 1.27 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 8 in | 20.32 cm |
| 10 in | 25.4 cm |
| 18 in | 45.72 cm |
| 30 in | 76.2 cm |
| 48 in | 121.92 cm |
| 96 in | 243.84 cm |
| 120 in | 304.8 cm |
| 144 in | 365.76 cm |
For technical comparison, keep decimal centimeters.
For customer-facing copy, a rounded whole number or one decimal place may be easier to understand.
Do not round down if the measurement is used to confirm whether an object will fit.
One inch is exactly 2.54 centimeters.
One centimeter is about 0.393701 inches.
Yes. 10 inches is exactly 25.4 centimeters.