Centimeters (cm)

A centimeter is a unit of length in the metric system equal to one-hundredth of a meter. It is used to measure small distances and dimensions precisely. The centimeter is defined as exactly 0.01 meters according to the International System of Units [bipm-si-brochure].

Origin

The centimeter was established during the creation of the metric system in France in 1795. It was adopted internationally as part of the SI base units to standardize length measurements for science, engineering, and daily use [bipm-si-brochure].

Worldwide Use

Centimeters are widely used globally for measuring body dimensions, furniture, and small objects. It is standard in education, manufacturing, and healthcare, especially in countries that use the metric system [nist-si-guide].

Common References

  • A standard credit card is about 8.5 cm wide
  • The average adult fingernail length is about 1 cm
  • A pencil is typically around 19 cm long
  • Height measurements in medical records often use centimeters