Inches to Centimeters Converter
Convert inches to centimeters instantly. Exact formula, quick chart and examples. Free, no signup.
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About the Inches to Centimeters Converter
This free inches to centimeters converter gives the exact result as you type, with no button to press and no signup. It is built for everyday use in the US: recipes, travel, fitness, weather, school work and shopping. The formula and a quick reference chart are included below so you can check the math yourself.
Need the opposite direction? Use the Centimeters to Inches converter.
How to use it
- Type the number of inches in the first box.
- Read the result in centimeters immediately below.
- Use the chart on this page for common values you can check at a glance.
Inches to Centimeters formula
cm = inches × 2.54
Example: 12 in × conversion = 30.48 cm.
Quick mental estimate: multiply inches by 2.5. 10 inches is about 25 cm (exact: 25.4 cm).
in to cm chart
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 10 in | 25.4 cm |
| 12 in | 30.48 cm |
| 24 in | 60.96 cm |
| 36 in | 91.44 cm |
| 60 in | 152.4 cm |
| 66 in | 167.64 cm |
| 72 in | 182.88 cm |
cm to in reverse chart
Going the other way? These are the same values read backwards.
| Centimeters (cm) | Inches (in) |
|---|---|
| 2.54 cm | 1 in |
| 5.08 cm | 2 in |
| 12.7 cm | 5 in |
| 15.24 cm | 6 in |
| 25.4 cm | 10 in |
| 30.48 cm | 12 in |
| 60.96 cm | 24 in |
| 91.44 cm | 36 in |
| 152.4 cm | 60 in |
| 167.64 cm | 66 in |
| 182.88 cm | 72 in |
About inches and centimeters
Since 1959 the international inch has been defined as exactly 2.54 centimeters. Inches are used in the US for screen sizes, tools, clothing and household measurements, while centimeters are standard for science and most other countries.
Common uses
- Screen sizes, picture frames and furniture.
- Clothing, waist and height measurements.
- Craft, DIY and engineering drawings.
Frequently asked questions
How many cm is 1 inch?
1 inch is exactly 2.54 cm.
How many cm is 12 inches?
12 inches (1 foot) is 30.48 cm.
How many cm is 5 ft 9 in?
5 ft 9 in is 69 inches, or 175.26 cm.
How many cm is 6 feet?
6 feet (72 inches) is 182.88 cm.
What is the formula to convert inches to centimeters?
cm = inches × 2.54. This page applies it for you instantly as you type.
Last reviewed: November 2026.
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