- National Institute of Standards and Technology (NIST). NIST Handbook 133, Appendix E (PDF). Defines the exact equivalence between the international inch and the centimeter, used for converting inches to centimeters.
- National Institute of Standards and Technology (NIST). NIST Publication 958415 (PDF). Establishes official technical definitions of length units, including the inch and the centimeter.
Inches to Centimeters Converter (in to cm)
Table of Contents
- How to Convert Inches to Centimeters (in to cm)?
- Conversion Example: Inches to Centimeters
- Inches to Centimeters Conversion Table
- Frequently Asked Questions
How to Convert Inches to Centimeters (in to cm)?
The conversion from inches to centimeters is simple: one inch equals 2.54 centimeters. Therefore, to convert, you just need to multiply the number of inches by 2.54.
Formula
Conversion Example: Inches to Centimeters
With these steps, you can easily convert inches to centimeters without needing a calculator. Below, we provide practical examples to better understand the process.
Example 1
Convert 8 inches to centimeters.
Result: 8 inches equal 20.32 centimeters.
Example 2
Convert 5.5 inches to centimeters.
Result: 5.5 inches equal 13.97 centimeters.
Inches to Centimeters Conversion Table
| Inches | Centimeters |
|---|---|
| 1 in | 2.54 cm |
| 2 in | 5.08 cm |
| 3 in | 7.62 cm |
| 4 in | 10.16 cm |
| 5 in | 12.7 cm |
| 6 in | 15.24 cm |
| 7 in | 17.78 cm |
| 8 in | 20.32 cm |
| 9 in | 22.86 cm |
| 10 in | 25.4 cm |
| 22 in | 55.88 cm |
| 24 in | 60.96 cm |
| 27 in | 68.58 cm |
| 28 in | 71.12 cm |
| 32 in | 81.28 cm |
| 40 in | 101.6 cm |
| 42 in | 106.68 cm |
| 48 in | 121.92 cm |
| 50 in | 127 cm |
| 100 in | 254 cm |
| 150 in | 381 cm |
| 200 in | 508 cm |
| 500 in | 1270 cm |
| 1000 in | 2540 cm |
Frequently Asked Questions
How do I convert inches to centimeters?
To convert inches to centimeters, use the formula: Centimeters = Inches × 2.54. Simply multiply the value in inches by 2.54.
How many centimeters are in an inch?
One inch equals exactly 2.54 centimeters.
How accurate is the conversion from inches to centimeters?
The conversion is completely accurate because the factor 2.54 is exact. There’s no need to round unless it’s for an approximate calculation.
What are some common examples of converting inches to centimeters?
Some practical examples of converting inches to centimeters are: 1 inch = 2.54 centimeters, 12 inches (1 foot) = 30.48 centimeters, 24 inches (2 feet) = 60.96 centimeters. These examples are useful for estimating measurements in everyday situations, such as measuring screens or furniture.
References and Official Sources
The following official references support the definitions, tolerances, and technical criteria used on this page.
Cite this page
You can use the following citation format when referencing this calculator in academic or professional work.
Ramos, J., Inches to centimeters converter (in to cm), Available at: https://calcuclub.com/convert/inches-to-centimeters/ (Accessed: 15 December 2025).