Length / in → cm
Convert Inches to Centimeters
Compare screen diagonals, clothing measurements, and product dimensions. One international inch is exactly 2.54 centimeters.
Reverse: Centimeters to Inches →
How to convert inches to centimeters
Length conversion changes the unit of a distance. Area and volume need squared and cubed factors; this calculator does not convert square feet or cubic feet.
Use x for the value in in, b for the intermediate value in m, and y for the result in cm.
cm = in × 0.0254 ÷ 0.01
Worked examples
12 in ≈ 30.48 cm
Step 1: (12 × 0.0254) ≈ 0.3048 m.
Step 2: 0.3048 ÷ 0.01 ≈ 30.48 cm.24 in ≈ 60.96 cm
Step 1: (24 × 0.0254) ≈ 0.6096 m.
Step 2: 0.6096 ÷ 0.01 ≈ 60.96 cm.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Inches
The international inch is exactly 0.0254 meters. Screen sizes usually describe a diagonal length in inches, not the width of a display.
About Centimeters
A centimeter is one hundredth of a meter. It is often used for body measurements, product dimensions, and clothing sizes.
Definitions and sources
Use consistent length units when carrying dimensions into construction calculations.
Inches to centimeters reference table
| Inches (in) | Centimeters (cm) |
|---|---|
| 1 | 2.54 |
| 5 | 12.7 |
| 10 | 25.4 |
| 25 | 63.5 |
| 50 | 127 |
| 100 | 254 |
| 1000 | 2540 |
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