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SI derived unit

 

 
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SI derived unit
 
 
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SI derived units are part of the SISi

Si, si, or SI may stand for:...
 system of measurement unitUnits of measurement

The definition, agreement and practical use of units of measurement have played a crucial role in human endeavour from early...
s and are derived from the seven SI base unitSI base unit

The SI system of units defines seven SI base units: physical units defined by an operational definition....
s.

Derived units with special names

Base units can be put together to derive units of measurement for other quantities. In addition to the two dimensionless derived units radianRadian

The radian is a unit of plane angle....
 (rad) and steradianSteradian

The steradian is the SI unit of solid angle....
 (sr) there are 20 derived units having special names:

Other quantities and units

See also

  • SI prefixSI prefix

    An SI prefix is a name or associated symbol that precedes a unit of measure to form a decimal multiple or submultiple....
  • Planck unitsPlanck units

    In physics, Planck units are physical units of measurement defined exclusively in terms of the five universal physical const...