Inch to cm Conversion
Easily convert between inches (in) and centimeters (cm), and learn about the conversion relationship and common size comparisons
Conversion Calculator
Conversion Formula
Inches and centimeters are both units of length. The conversion relationship between them is:
1 inch (in) = 2.54 centimeters (cm)
1 centimeter (cm) = 0.393701 inches (in)
Based on the above relationship, we can derive:
- Inches to centimeters: centimeters = inches × 2.54
- Centimeters to inches: inches = centimeters ÷ 2.54
About Inches and Centimeters
Inch (in)
The inch is a unit of length in the imperial system, primarily used in countries such as the United Kingdom and the United States. Originally defined as the width of a thumb, it is now internationally standardized as 2.54 centimeters.
Centimeter (cm)
The centimeter is a unit of length in the metric system and is part of the International System of Units (SI). One centimeter is equal to 0.01 meters and is a commonly used unit in daily life.
Common Size Comparison Table
| Inches (in) | Centimeters (cm) | Common Applications |
|---|---|---|
| 1 | 2.54 | Small object dimensions |
| 5 | 12.7 | Phone screen (diagonal) |
| 10 | 25.4 | Tablet screen |
| 24 | 60.96 | Small monitor / gaming monitor |
| 27 | 68.58 | Standard monitor / gaming monitor |
| 32 | 81.28 | Large monitor / small TV |
| 34 | 86.36 | Ultra-wide monitor |
| 45 | 114.3 | Medium to large TV |
| 55 | 139.7 | Large TV |
| 65 | 165.1 | Extra-large screen TV |
Note: Highlighted rows indicate common monitor sizes
Recommended Monitor Products
Common Applications of Inches and Centimeters
Electronics
Screen sizes of TVs, computer monitors, phones, etc., are typically measured in inches (diagonal length)
Photography & Printing
Photo sizes and paper specifications often use inches, such as 5×7 inch photos
Clothing & Footwear
International clothing and shoe sizes often use inches as a unit
Construction & Renovation
Some countries use inches as a unit of length in construction and renovation
Cameras & Lenses
Camera sensor sizes and lens focal lengths are often expressed in inches
Product Specifications
The dimensions of many international products are often marked in inches
