Convert inches to centimeters

Enter value below to convert inches [in] to centimeters [cm], or vice versa.

inch

centimeter

inch information

Definition

An inch is a unit of length in the imperial and United States customary systems of measurement. It is equal to 1/12 of a foot or approximately 2.54 centimeters. The inch is a standard unit of measurement for linear distance, commonly used in the United States and other countries that use the imperial system of measurement. It is also used in many other fields, such as construction, engineering, and science, to express the size or dimensions of objects or distances between points.

History

The inch is a unit of length that has a long history dating back to ancient times. It is believed to have originated in ancient Egypt, where it was used as a unit of measurement for agricultural products. The inch was also used by the ancient Greeks and Romans, and it was later adopted by the British and other countries as a standard unit of measurement.

In the United States, the inch is defined as 1/36 of a yard, which is equal to 1/12 of a foot. The inch was first defined in this way in the United States in the Mendenhall Order of 1893, which established the inch as a standard unit of measurement for the U.S. government.

The modern inch is defined as being exactly 25.4 millimeters, which is based on the international yard, a standardized unit of length that was adopted by the United States in 1959. This definition allows for the easy conversion of inches to other units of measurement, such as centimeters and millimeters.

centimeter information

Definition

A centimeter is a unit of length in the metric system. It is equal to one hundredth of a meter, which is the current base unit of length in the International System of Units (SI). One centimeter is equal to 0.01 meters, or 10 millimeters. It is a commonly used unit of length in everyday life, especially for measuring small distances or thicknesses. For example, a pencil is about one centimeter in diameter, and a sheet of paper is about 0.1 centimeters thick.

History

The centimeter is a unit of length in the metric system. It is equal to one hundredth of a meter, which is the base unit of length in the International System of Units (SI). The centimeter was first proposed in 1793 by the French Academy of Sciences as part of the metric system, but it was not officially adopted until 1795.

In the early days of the metric system, the centimeter was defined as the length of a platinum-iridium bar that was kept at the International Bureau of Weights and Measures in Paris. This bar was intended to serve as a standard reference for the measurement of length. In 1960, the meter, and therefore the centimeter, was redefined in terms of the speed of light, which is a fundamental constant of nature. This definition is still in use today.

Over the years, the centimeter has become a commonly used unit of length in everyday life, especially for measuring small distances or thicknesses. For example, a pencil is about one centimeter in diameter, and a sheet of paper is about 0.1 centimeters thick. The centimeter is also commonly used in science, engineering, and construction.