📏 Inch Converter

1 inch = 2.54 cm
1 inch = 25.4 mm
1 foot = 12 inches = 30.48 cm

What is an inch?

The inch is a unit of length used in the imperial system, where 1 inch equals exactly 2.54 centimeters. Inches are used across many fields including TV and monitor screen sizes, bicycle wheel specs, pipe diameters, and clothing sizes. While the metric system is standard in many countries, display sizes and imported products are often still labeled in inches, making inch-to-centimeter conversion a frequent need.

How to read TV and monitor inches

The inch figure on TVs and monitors refers to the diagonal length of the screen. For example, a 55-inch TV has a diagonal of 55 inches (about 139.7 cm), while the width and height depend on the aspect ratio (usually 16:9). A 32-inch screen is about 81.3 cm and a 65-inch screen is about 165.1 cm. When comparing screen sizes, consider viewing distance and resolution alongside the diagonal inch measurement.

Inch conversion tips

To convert inches to centimeters, multiply the inch value by 2.54. For millimeters, multiply by 25.4, and for meters multiply by 0.0254. To convert centimeters back to inches, divide by 2.54. Knowing these conversions is handy for furniture placement, appliance shopping, and comparing product specs when buying from overseas.