Centimeter to Inch Converter

About this conversion

The centimeter-to-inch conversion is one of the most frequently searched unit conversions on the internet. This demand comes from a clear real-world divide: most of the world has adopted the metric system, but the United States — along with a handful of other countries — still uses the imperial system for everyday measurements like clothing sizes, screen sizes, and body height. Understanding that 1 inch equals exactly 2.54 centimeters is the foundation of this conversion. To go the other direction, divide centimeters by 2.54. A person who is 170 cm tall is approximately 5 feet 7 inches (66.9 in). A 65-inch TV has a screen diagonal of 165.1 cm. These kinds of comparisons are where this conversion earns its practical value. The "exact" relationship (2.54 cm per inch) was formally agreed upon in 1959 by the United States, United Kingdom, Australia, Canada, New Zealand, and South Africa — a moment that standardized the link between the two systems once and for all.