Inches to CM Converter
Convert between inches and centimeters instantly — no signup, nothing sent to a server.
Edit either field — the other updates automatically. 1 in = 2.54 cm.
Formula, conversion table & examples
Formula
cm = in × 2.54
in = cm ÷ 2.54
Inches to Centimeters conversion table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 5 | 12.7 |
| 10 | 25.4 |
| 20 | 50.8 |
| 50 | 127 |
| 100 | 254 |
Worked examples
- 1 in = 1 × 2.54 = 2.54 cm
- 5 in = 5 × 2.54 = 12.7 cm
- 254 cm back to Inches: 254 ÷ 2.54 = 100 in
How to convert inches to centimeters
-
1
Enter a value in either field
Type a value into the inches field, or the centimeters field — either direction works.
-
2
Read the converted value
The other field updates instantly as you type.
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3
Adjust as needed
Keep editing either field to try different values.
Example use cases
Clothing & shoe sizing
Convert body or garment measurements from inches into centimeters for metric size charts.
Furniture & room dimensions
Check whether a piece of furniture fits a space measured in centimeters.
DIY & woodworking
Convert plans or material dimensions from inches to metric.
Screen & display sizes
Convert diagonal or panel dimensions from inches to centimeters.
Frequently asked questions
How do I convert inches to centimeters?
Multiply the length in inches by 2.54. For example, 1 in × 2.54 = 2.54 cm.
How do I convert centimeters to inches?
Divide the length in centimeters by 2.54. For example, 2.54 cm ÷ 2.54 = 1 in.
Why is 2.54 the conversion factor?
One inch is defined as exactly 2.54 centimeters under the international yard and pound agreement, so this factor is exact, not an approximation.
Is anything I type sent to a server?
No. Every conversion runs entirely in your browser — nothing is transmitted or logged.