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User:Dondervogel 2/Metric units

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Metric units are units based on the metre, gram or second and power of ten multiples or sub-multiples of these. The most widely used examples are the units of the International System of Units (SI). Other unit systems using metric units include:

Metric units that are part of the SI

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The modern metric system of units is the SI, comprising seven base units and multiple derived units.

Metric units that are not part of the SI

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Metric units that are not part of the SI include

Space and time

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Distance

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Area

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  • The shed is equal to 10−24 barns (10−52 m2).
  • The outhouse is equal to one hundred attometres squared (100 am2 = 10−34 m2).
  • The barn (b) is equal to one hundred femtometres squared (100 fm2 = 10−28 m2).
  • The are (a) is equal to one hundred metres squared (100 m2).
  • The decare (daa) is equal to one thousand metres squared (1000 m2).
  • The hectare (ha) is equal to ten thousand metres squared (10,000 m2).

Volume

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Reciprocal length

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Time

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Frequency

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Speed

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  • The benz is equal to one metre per second (1 m/s).

Acceleration

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  • The gal (Gal) is equal to ten millimetres per second squared (10 mm/s2).[2]

Mechanics

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Mass

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Force

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Pressure

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Energy

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Viscosity

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Electromagnetism

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Electricity

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Magnetism

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Light

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  • The nox (nx) is a unit of illuminance equal to 1 millilux (1 mlx).
  • The phot (ph) is a unit of illuminance equal to 10 kilolux (10 klx).[9]
  • The nit (nt) is a unit of luminance equal to one candela per metre squared (1 cd m-2).
  • The stilb (sb) is a unit of luminance equal to ten kilocandelas per metre squared (10 kcd m-2).[10]

Base-10 logarithmic units

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Level (power ratio)

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Information and computer storage

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  • The deciban is a logarithmic unit of information equal to one tenth of a ban.
  • The kilobyte (kB) is a logarithmic unit of computer data storage equal to one thousand bytes.
  • The megabyte (MB) is a logarithmic unit of computer data storage equal to one thousand kilobytes.
  • The gigabyte (GB) is a logarithmic unit of computer data storage equal to one thousand megabytes.
  • The terabyte (TB) is a logarithmic unit of computer data storage equal to one thousand gigabytes.
  • The petabyte (PB) is a logarithmic unit of computer data storage equal to one thousand terabytes.
  • The exabyte (EB) is a logarithmic unit of computer data storage equal to one thousand petabytes.
  • The zettabyte (ZB) is a logarithmic unit of computer data storage equal to one thousand exabytes.
  • The yottabyte (YB) is a logarithmic unit of computer data storage equal to one thousand zettabytes.

Frequency ratio

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See also

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References

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