SI derived unit

An SI derived unit is a unit of measurement that can be expressed as a combination of one or more SI base units. A unit that is dimensionless is also called a derived unit. There are special names for 22 of these units.
Named units derived from SI base unitsNameSymbolQuantityDefinition 
other unitsDefinition
SI base unitsradianradplane angle−steradiansrsolid angle−hertzHzfrequencys−1newtonNforce, weightm⋅kg⋅s−2pascalPapressure, stressN/m2m−1⋅kg⋅s−2jouleJenergy, work, heatN⋅mm2⋅kg⋅s−2wattWpower, radiant fluxJ/sm2⋅kg⋅s−3coulombCelectric charges⋅AvoltVvoltage, electrical potential difference, electromotive forceW/A 
J/Cm2⋅kg⋅s−3⋅A−1faradFelectrical capacitanceC/Vm−2⋅kg−1⋅s4⋅A2ohmΩelectrical resistance, impedance, reactanceV/Am2⋅kg⋅s−3⋅A−2siemensSelectrical conductance1/Ωm−2⋅kg−1⋅s3⋅A2weberWbmagnetic fluxJ/Am2⋅kg⋅s−2⋅A−1teslaTmagnetic field strengthWb/m2 
V⋅s/m2 
N/(A⋅m)kg⋅s−2⋅A−1henryHinductanceWb/A 
V⋅s/Am2⋅kg⋅s−2⋅A−2degree Celsius°Ctemperature relative to 273.15 KTK − 273.15Klumenlmluminous fluxcd⋅srcdluxlxilluminancelm/m2m−2⋅cdbecquerelBqradioactivity (decays per unit time)s−1grayGyabsorbed dose (of ionizing radiation)J/kgm2⋅s−2sievertSvequivalent dose (of ionizing radiation)J/kgm2⋅s−2katalkatcatalytic activitys−1⋅mol