##### Metric Prefix A [[metric system|metric]] prefix is a unit prefix that precedes a basic unit of [[Measurement|measure]] to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic. Each prefix has a unique symbol that is prepended to any unit symbol. The prefix kilo-, for example, may be added to [[gram]] to indicate [[multiplication]] by one thousand: one kilogram is equal to one thousand grams. The prefix milli-, likewise, may be added to [[metre]] to indicate [[division]] by one thousand; one millimetre is equal to one thousandth of a metre. >Covered in: >Mentioned in: >References: [[WP Metric Prefix|🌍]] >Required by: > >Related to: