Template:SI prefixes (infobox)

SI prefixes

Prefix Base 1000 Base 10 Decimal English word Adoption Name Symbol Short scale Long scale quetta Q  100010  1030 1000000000000000000000000000000  nonillion  quintillion 2022 ronna R  10009  1027 1000000000000000000000000000  octillion  quadrilliard 2022 yotta Y  10008  1024 1000000000000000000000000  septillion  quadrillion 1991 zetta Z  10007  1021 1000000000000000000000  sextillion  trilliard 1991 exa E  10006  1018 1000000000000000000  quintillion  trillion 1975 peta P  10005  1015 1000000000000000  quadrillion  billiard 1975 tera T  10004  1012 1000000000000  trillion  billion 1960 giga G  10003  109 1000000000  billion  milliard 1960 mega M  10002  106 1000000  million 1873 kilo k  10001  103 1000  thousand 1795 hecto h  10002/3  102 100  hundred 1795 deca da  10001/3  101 10  ten 1795  10000  100 1  one – deci d  1000−1/3  10−1 0.1  tenth 1795 centi c  1000−2/3   10−2 0.01  hundredth 1795 milli m  1000−1  10−3 0.001  thousandth 1795 micro μ  1000−2  10−6 0.000001  millionth 1873 nano n  1000−3  10−9 0.000000001  billionth  milliardth 1960 pico p  1000−4  10−12 0.000000000001  trillionth  billionth 1960 femto f  1000−5  10−15 0.000000000000001  quadrillionth  billiardth 1964 atto a  1000−6  10−18 0.000000000000000001  quintillionth  trillionth 1964 zepto z  1000−7  10−21 0.000000000000000000001  sextillionth  trilliardth 1991 yocto y  1000−8  10−24  0.000000000000000000000001  septillionth  quadrillionth 1991 ronto r  1000−9  10−27  0.000000000000000000000000001  octillionth  quadrilliardth 2022 quecto q  1000−10  10−30  0.000000000000000000000000000001  nonillionth  quintillionth 2022

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Usage

See also

• {{SI prefixes (inline table)}}
• {{Common metric prefixes}}

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