Centimetre (cm)
The centimetre (symbol cm) is a unit of length in the metric system equal to one hundredth of a metre, or 10 millimetres. It serves as a practical scale for everyday measurements, such as human height, clothing dimensions, and rainfall. In the historic CGS (centimetre-gram-second) system, it was the fundamental unit of length, though the International System of Units (SI) now designates the metre as the official base unit.
Metric
- Kilometre (km)1×10⁻⁵
- Metre (m)0.01
- Decimetre (dm)0.1
- Centimetre (cm)1
- Millimetre (mm)10
- Micrometre (µm)10,000
- Nanometre (nm)10,000,000
- Angstrom (Å)100,000,000
Nautical
- Nautical mile5.4×10⁻⁶
- Fathom0.01
Astronomical
- Parsec (pc)3.24×10⁻¹⁹
- Light year1.06×10⁻¹⁸
- Astronomical unit (au)6.68×10⁻¹⁴
- Light minute5.56×10⁻¹³
- Light second3.34×10⁻¹¹