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INI

SI Unit Prefixes - INI

SI prefixes are prefixes used in the International System of Units (SI) to indicate multiples of units. They correspond to powers of 10 and range from large values (kilo, mega, giga, tera, etc.) to small values (milli, micro, nano, etc.). In 2022, four new prefixes (ronna, quetta, ronto, quecto) were added for the first time in 31 years, bringing the total to 24 prefixes currently in use. This system is essential for concisely expressing large and small numbers in science, technology, and everyday life.

International System of Units SI units unit conversion prefixes science technology 
[item.quetta]
code=Q
slug=quetta
name=quetta
description=SI prefix representing 10 to the power of 30.
category=large
decimalValue=1000000000000000000000000000000
powerOfTen=30

[item.ronna]
code=R
slug=ronna
name=ronna
description=SI prefix representing 10 to the power of 27.
category=large
decimalValue=1000000000000000000000000000
powerOfTen=27

[item.yotta]
code=Y
slug=yotta
name=yotta
description=SI prefix representing 10 to the power of 24.
category=large
decimalValue=1000000000000000000000000
powerOfTen=24

[item.zetta]
code=Z
slug=zetta
name=zetta
description=SI prefix representing 10 to the power of 21.
category=large
decimalValue=1000000000000000000000
powerOfTen=21

[item.exa]
code=E
slug=exa
name=exa
description=SI prefix representing 10 to the power of 18.
category=large
decimalValue=1000000000000000000
powerOfTen=18

[item.peta]
code=P
slug=peta
name=peta
description=SI prefix representing 10 to the power of 15.
category=large
decimalValue=1000000000000000
powerOfTen=15

[item.tera]
code=T
slug=tera
name=tera
description=SI prefix representing 10 to the power of 12.
category=large
decimalValue=1000000000000
powerOfTen=12

[item.giga]
code=G
slug=giga
name=giga
description=SI prefix representing 10 to the power of 9.
category=large
decimalValue=1000000000
powerOfTen=9

[item.mega]
code=M
slug=mega
name=mega
description=SI prefix representing 10 to the power of 6.
category=large
decimalValue=1000000
powerOfTen=6

[item.kilo]
code=k
slug=kilo
name=kilo
description=SI prefix representing 10 to the power of 3 (1000).
category=large
decimalValue=1000
powerOfTen=3

[item.hecto]
code=h
slug=hecto
name=hecto
description=SI prefix representing 10 to the power of 2 (100).
category=large
decimalValue=100
powerOfTen=2

[item.deca]
code=da
slug=deca
name=deca
description=SI prefix representing 10 to the power of 1 (10).
category=large
decimalValue=10
powerOfTen=1

[item.deci]
code=d
slug=deci
name=deci
description=SI prefix representing 10 to the power of -1 (0.1).
category=small
decimalValue=0.1
powerOfTen=-1

[item.centi]
code=c
slug=centi
name=centi
description=SI prefix representing 10 to the power of -2 (0.01).
category=small
decimalValue=0.01
powerOfTen=-2

[item.milli]
code=m
slug=milli
name=milli
description=SI prefix representing 10 to the power of -3 (0.001).
category=small
decimalValue=0.001
powerOfTen=-3

[item.micro]
code=μ
slug=micro
name=micro
description=SI prefix representing 10 to the power of -6 (0.000001).
category=small
decimalValue=0.000001
powerOfTen=-6

[item.nano]
code=n
slug=nano
name=nano
description=SI prefix representing 10 to the power of -9 (0.000000001).
category=small
decimalValue=0.000000001
powerOfTen=-9

[item.pico]
code=p
slug=pico
name=pico
description=SI prefix representing 10 to the power of -12.
category=small
decimalValue=0.000000000001
powerOfTen=-12

[item.femto]
code=f
slug=femto
name=femto
description=SI prefix representing 10 to the power of -15.
category=small
decimalValue=0.000000000000001
powerOfTen=-15

[item.atto]
code=a
slug=atto
name=atto
description=SI prefix representing 10 to the power of -18.
category=small
decimalValue=0.000000000000000001
powerOfTen=-18

[item.zepto]
code=z
slug=zepto
name=zepto
description=SI prefix representing 10 to the power of -21.
category=small
decimalValue=0.000000000000000000001
powerOfTen=-21

[item.yocto]
code=y
slug=yocto
name=yocto
description=SI prefix representing 10 to the power of -24.
category=small
decimalValue=0.000000000000000000000001
powerOfTen=-24

[item.ronto]
code=r
slug=ronto
name=ronto
description=SI prefix representing 10 to the power of -27.
category=small
decimalValue=0.000000000000000000000000001
powerOfTen=-27

[item.quecto]
code=q
slug=quecto
name=quecto
description=SI prefix representing 10 to the power of -30.
category=small
decimalValue=0.000000000000000000000000000001
powerOfTen=-30