Convert cm to inches

厘米

定义
A centimeter (symbol: cm) is an SI unit of length equal to one-hundredth of a meter. It’s part of the metric system’s decimal structure, making it easy to scale between units.

起源
Derived from the prefix 厘 （拉丁语 分, “hundred”), one centimeter is exactly 0.01 meters. The metric system’s prefixes—from 千克 (10³) 到 纳米 (10⁻⁹)—allow seamless transitions across vast size ranges.

现代使用
Centimeters are used globally wherever a finer division of the meter is needed: measuring height, small objects, school rulers, and many scientific contexts outside the United States.

英寸

定义
An inch (symbol: in) is a length unit in the Imperial and U.S. customary systems. Since 1959, one inch equals exactly 25.4 mm. Twelve inches make a foot; thirty-six make a yard.

起源
The word “inch” comes from the Latin 珊瑚虫 (“one-twelfth”). Early definitions tied an inch to three barleycorns laid end-to-end or to the average width of three thumbs. Later, it was standardized via the international yard.

现代使用
Inches remain standard in the U.S., Canada, and the U.K. for construction, screen sizes, and other everyday measurements. They also appear in electronics globally, such as TV and smartphone display diagonals.

Centimeter → Inch Conversion Table

如何转换

• 1 厘米 = 0.39370079 英寸

• 1 英寸 = 2.54 厘米

示例

To convert 15 cm to inches:

15 cm × 0.39370079 in/cm = 5.90551185 in