Inches to CM Converter
Convert inches to centimeters or centimeters to inches instantly with this free, mobile-friendly length converter. Enter decimals, reverse the direction, and check common measurements.
Enter a value in either field to convert instantly. Use the swap button to reverse the conversion.
How to convert inches and centimeters
Multiply inches by 2.54 to get centimeters. To convert centimeters back to inches, divide by 2.54.
cm = inches × 2.54
Reverse formula: inches = centimeters ÷ 2.54
Common inches and centimeters conversions
Use these quick reference values for everyday measurements. Results are rounded for display; the converter uses the defined conversion factor.
When to use this converter
Inches to centimeters conversion is useful for product dimensions, screen sizes, furniture, clothing measurements, craft projects and technical specifications that use different measurement systems.
One international inch is defined as exactly 2.54 centimeters. The tool keeps decimal precision during calculation and rounds only the displayed value.
Frequently asked questions
How many centimeters are in one inch?
One inch equals exactly 2.54 centimeters.
How do I convert inches to centimeters?
Multiply the inch value by 2.54. For example, 8 inches × 2.54 = 20.32 cm.
How do I convert centimeters to inches?
Divide the centimeter value by 2.54. For example, 10 cm ÷ 2.54 is approximately 3.937 inches.
Can I convert decimal inches?
Yes. Enter values such as 5.5 or 12.25 inches; the calculator supports decimal measurements.