Convert Inches to Centimeters
1 Inch (in) = 2.54 Centimeters (cm). Use the free converter below to instantly convert any inch value to centimeters, or view the full conversion table and formula.
1 in = 2.54 cm
Inch to Centimeter Conversion Table
How to Convert Inches to Centimeters
To convert inches to centimeters, multiply the number of inches by 2.54. Since 1 inch is defined as exactly 2.54 cm, this conversion is precise with no rounding error. For example, 8 inches × 2.54 = 20.32 cm.
Worked Example: Convert 4 in to cm
Start with the value in inches
4 in
Apply the formula
cm = 4 × 2.54
Calculate the result
4 in = 10.16 cm
Inch to Centimeter Examples
1 in is equal to 2.54 cm. Using the formula inches × 2.54, 1 in converts to 2.54 cm.
2 in is equal to 5.08 cm. Using the formula inches × 2.54, 2 in converts to 5.08 cm.
3 in is equal to 7.62 cm. Using the formula inches × 2.54, 3 in converts to 7.62 cm.
4 in is equal to 10.16 cm. Using the formula inches × 2.54, 4 in converts to 10.16 cm.
5 in is equal to 12.7 cm. Using the formula inches × 2.54, 5 in converts to 12.7 cm.
6 in is equal to 15.24 cm. Using the formula inches × 2.54, 6 in converts to 15.24 cm.
7 in is equal to 17.78 cm. Using the formula inches × 2.54, 7 in converts to 17.78 cm.
8 in is equal to 20.32 cm. Using the formula inches × 2.54, 8 in converts to 20.32 cm.
Converting Centimeters to Inches
Need the reverse conversion? Use the table below for a quick reference converting centimeters back to inches.
| Centimeters (cm) | Inches (in) |
|---|---|
| 1 | 0.3937 |
| 2 | 0.7874 |
| 3 | 1.1811 |
| 5 | 1.9685 |
| 10 | 3.937 |
| 15 | 5.9055 |
Inches to Centimeters FAQ
How many cm are in 1 inch?
1 inch is exactly 2.54 centimeters. This is a precise, internationally agreed-upon conversion factor.
How do I convert inches to centimeters?
Multiply the number of inches by 2.54. For example, 12 inches × 2.54 = 30.48 cm.
What is 6 inches in cm?
6 inches equals 15.24 centimeters (6 × 2.54 = 15.24).
Understanding Inches and Centimeters
What is an Inch (in)?
The inch (in) is a unit of length in the imperial system. It is commonly abbreviated as in and relates to centimeters by a factor of 2.54.
What is a Centimeter (cm)?
The centimeter (cm) is a unit of length in the metric system. It is commonly abbreviated as cm and relates to inches by a factor of 0.393701.