Convert Inches to CM & CM to Inches
The fastest, most accurate inches conversion tool on the web. Convert inches to centimeters, cm to inches, inches to feet, and more — instantly.
How to Convert Inches to Centimeters
Converting inches to centimeters is one of the most common unit conversions performed worldwide. The inch is a unit of length in the imperial system, primarily used in the United States, United Kingdom, and Canada. The centimeter is a metric unit used by virtually every other country in the world. One inch is exactly equal to 2.54 centimeters. This conversion factor was internationally agreed upon in 1959.
To convert inches to centimeters, simply multiply the number of inches by 2.54. For example, 10 inches equals 25.4 centimeters (10 × 2.54 = 25.4). To convert centimeters to inches, divide the number of centimeters by 2.54. For example, 30 centimeters equals approximately 11.81 inches (30 ÷ 2.54 ≈ 11.81).
The inch originated from the width of a human thumb and has been standardized over centuries. Today it is defined as exactly 25.4 millimeters. Common uses include measuring screen sizes (TVs, monitors, phones), paper sizes, construction materials, and body measurements in countries using the imperial system.
Our free online converter provides instant, accurate results for any inches to centimeters or centimeters to inches conversion. Whether you need to convert 20 cm to inches for a clothing size, 30 cm to inches for a ruler measurement, or 100 cm to inches for furniture dimensions, Inches2 gives you the answer in milliseconds.