Metric prefixes are pretty easy to understand and very handy for
metric conversions. You don't have to know the nature of a unit to
convert,

for example, from*kilo-unit* to *mega-unit*. You either multiply or divide by a power of ten. All metric prefixes indicate powers of 10. The **most **

commonly used prefixes
are highlighted ** in bold ** in the table. Most people even in the countries where metric system is only used, only know

the most commonly used metric prefixes like 'kilo' and 'milli'. The prefixes like 'zepto' or 'yotta' are very specific and used mostly in science.

for example, from

commonly used prefixes

the most commonly used metric prefixes like 'kilo' and 'milli'. The prefixes like 'zepto' or 'yotta' are very specific and used mostly in science.

Prexis | Symbol | Factor |
---|---|---|

yotta | Y | 10^{24} = 1,000,000,000,000,000,000,000,000 |

zetta | Z | 10^{21} = 1,000,000,000,000,000,000,000 |

exa | E | 10^{18} = 1,000,000,000,000,000,000 |

peta | P | 10^{15} = 1,000,000,000,000,000 |

tera | T | 10^{12} = 1,000,000,000,000 |

giga | G | 10^{9} = 1,000,000,000 |

mega | M | 10^{6} = 1,000,000 |

kilo | k | 10^{3} = 1,000 |

hecto | h | 10^{2} = 100 |

deka | da | 10^{1} = 10 |

deci | d | 10^{-1} = 0.1 |

centi | c | 10^{-2} = 0.01 |

milli | m | 10^{-3} = 0.001 |

micro | µ | 10^{-6} = 0.000,001 |

nano | n | 10^{-9} = 0.000,000,001 |

pico | p | 10^{-12} = 0,000,000,000,001 |

femto | f | 10^{-15} = 0.000,000,000,000,001 |

atto | a | 10^{-18} = 0.000,000,000,000,000,001 |

zepto | z | 10^{-21} = 0.000,000,000,000,000,000,001 |

yocto | y | 10^{-24} = 0.000,000,000,000,000,000,000,001 |