A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or fraction of the unit. 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 meter to indicate division by one thousand; one millimeter is equal to one thousandth of a meter. This Prefixes converter allows you to convert yotta (Y), zetta (Z), exa (E), peta (P), tera (T), giga (G), mega (M), kilo (k), hecto (h), deka (da), deci (d), centi (c), milli (m), micro (µ), nano (n), pico (p), femto (f), atto (a), zepto (z), yocto (y), among other units related to Prefixes.