[Home]SI derived unit

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SI derived units are units derived from the seven SI base units.

Physical quantityName of SI unitSymbol? for SI unitExpression in terms of SI base units
Special names and Symbols
frequencyhertzHzs-1 
forcenewtonNm.kg.s-2 
pressure, stresspascalPaN.m-2 = m-1.kg.s-2
energy, work, heatjouleJN.m = m2.kg.s-2
power, [radiant flux]?watt?WJ.s-1 = m2.kg.s-3
electric chargecoulomb?CA.s 
[electric potential]?, [electromotive force]?voltVJ.C-1 = m2.kg.s-3.A-1
[electric resistance]?ohmΩV.A-1 = m2.kg.s-3.A-2
[electric conductance]?siemens?SA.V-1 = m-2.kg-1.s3.A2
[electric capacitance]?farad?FC.V-1 = m-2.kg-1.s4.A2
[magnetic flux density]?tesla?TV.s.m-2 = kg.s-2.A-1
magnetic fluxweberWbV.s = m2.kg.s-2.A-1
inductancehenryHV.A-1.s = m2.kg.s-2.A-2
temperaturedegree CelsiusoCK 
plane angleradianrad1= m.m-1
solid anglesteradiansr1= m2.m-2
luminous fluxlumenlmcd.sr 
illuminanceluxlxcd.sr.m-2 
activity (radioactive)becquerelBqs-1 
absorbed dose (of radiation)grayGyJ.kg-1= m2.s-2
dose equivalent (dose equivalent index)sievertSvJ.kg-1= m2.s-2
catalytic activitykatalkatmol.s-1 
Other Quantities
area  m2 
volume  m3 
speed, velocity  m.s-1 
angular velocity  s-1, rad.s-1 
acceleration  m.s-2 
moment of force  N.m = m2.kg.s-2
wavenumber  m-1 
density, mass density  kg.m-3 
specific volume  m3.kg-1 
amount (-of-substance) concentration  mol.m-3 
molar volume  m3.mol-1 
heat capacity, entropy  J.K-1 = m2.kg.s-2.K-1
molar heat capacity, molar entropy  J.K-1.mol-1 = m2.kg.s-2.K-1.mol-1
specific heat capacity, specific entropy  J.K-1.kg-1 = m2.s-2.K-1
molar energy  J.mol-1 = m2.kg.s-2.mol-1
specific energy  J.kg-1 = m2.s-2
energy density  J.m-3 = m-1.kg.s-2
surface tension  N.m-1=J.m-2 = kg.s-2
heat flux density, irradiance  W.m-2 = kg.s-3
thermal conductivity  W.m-1.K-1 = m.kg.s-3.K-1
kinematic viscosity, diffusion coefficient  m2.s-1 
dynamic viscosity  N.s.m-2 = Pa.s = m-1.kg.s-1
electric charge density  C.m-3 m-3.s.A
electric current density  A.m-2 
conductivity  S.m-1 = m-3.kg-1.s3.A2
molar conductivity  S.m2.mol-1 = kg-1.mol-1.s3.A2
permittivity  F.m-1 = m-3.kg-1.s4.A2;
permeability  H.m-1 = m.kg.s-2.A-2
electric field strength  V.m-1 = m.kg.s-3.A-1
magnetic field strength  A.m-1 
luminance  cd.m-2 
exposure (X and gamme rays)  C.kg-1 = kg-1.s.A
absorbed dose rate  Gy.s-1 = m2.s-3

(According to ISBN 0632035838 (amazon.com, search), page 72)

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Last edited November 17, 2001 4:22 pm by SJK (diff)
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