From Wikipedia, the free encyclopedia
Energy
system unit code
(alternative)
symbol or
abbrev.
notes sample
default conversion
combinations
SI yottajoule YJ YJ 1.0  YJ (2.8×1017  kWh)
zettajoule ZJ ZJ 1.0  ZJ (2.8×1014  kWh)
exajoule EJ EJ 1.0  EJ (2.8×1011  kWh)
petajoule PJ PJ 1.0  PJ (280,000,000  kWh)
terajoule TJ TJ 1.0  TJ (280,000  kWh)
gigajoule GJ GJ 1.0  GJ (280  kWh)
megajoule MJ MJ 1.0  MJ (0.28  kWh)
kilojoule kJ kJ 1.0  kJ (240  cal)
hectojoule hJ hJ 1.0  hJ (24  cal)
decajoule daJ daJ 1.0  daJ (2.4  cal)
joule J J 1.0  J (0.24  cal)
decijoule dJ dJ 1.0  dJ (0.024  cal)
centijoule cJ cJ 1.0  cJ (0.0024  cal)
millijoule mJ mJ 1.0  mJ (0.00024  cal)
microjoule μJ (uJ) μJ 1.0  μJ (2.4×10−7  cal)
nanojoule nJ nJ 1.0  nJ (2.4×10−10  cal)
picojoule pJ pJ 1.0  pJ (6.2  MeV)
femtojoule fJ fJ 1.0  fJ (6.2  keV)
attojoule aJ aJ 1.0  aJ (6.2  eV)
zeptojoule zJ zJ 1.0  zJ (6.2  meV)
yoctojoule yJ yJ 1.0  yJ (6.2  μeV)
cgs megaerg Merg Merg 1.0  Merg (0.10  J)
kiloerg kerg kerg 1.0  kerg (0.10  mJ)
erg erg (none) 1.0  erg (0.10  μJ)
millierg merg merg 1.0  merg (0.00010  μJ)
microerg μerg μerg 1.0  μerg (0.00010  nJ)
microerg uerg μerg 1.0  μerg (0.00010  nJ)
Watt-hour multiples terawatt-hour TWh TWh 1.0  TWh (3.6  PJ)
TW.h
(TW·h, TW-h)
TW⋅h
gigawatt-hour GWh GWh 1.0  GWh (3.6  TJ)
GW.h
(GW·h, GW-h)
GW⋅h
megawatt-hour MWh MWh 1.0  MWh (3.6  GJ)
MW.h
(MW·h, MW-h)
MW⋅h
kilowatt-hour kWh kWh 1.0  kWh (3.6  MJ)
kW.h
(kW·h, kW-h)
kW⋅h
watt-hour Wh Wh 1.0  Wh (3.6  kJ)
W.h
(W·h, W-h)
W⋅h
milliwatt-hour mWh mWh 1.0  mWh (3.6  J)
mW.h
(mW·h, mW-h)
mW⋅h
microwatt-hour μWh (uWh) μWh 1.0  μWh (3.6  mJ)
μW.h
(uW·h, μW.h, uW.h, μW-h, uW-h)
μW⋅h
Electronvolt multiples petaelectronvolt PeV PeV 1.0  PeV (0.16  mJ)
teraelectronvolt TeV TeV 1.0  TeV (0.16  μJ)
gigaelectronvolt GeV GeV 1.0  GeV (0.16  nJ)
megaelectronvolt MeV MeV 1.0  MeV (0.16  pJ)
kiloelectronvolt keV keV 1.0  keV (0.16  fJ)
electronvolt eV eV 1.0  eV (0.16  aJ)
millielectronvolt meV meV 1.0  meV (0.16  zJ)
microelectronvolt μeV (ueV) μeV 1.0  μeV (0.16  yJ)
nanoelectronvolt neV neV 1.0  neV (0.00016  yJ)
picoelectronvolt peV peV 1.0  peV (1.6×10−7  yJ)
femtoelectronvolt feV feV 1.0  feV (1.6×10−10  yJ)
Calorie multiples calorie Cal (Calorie) Cal 1.0  Cal (4.2  kJ)
megacalorie Mcal Mcal 1.0  Mcal (4.2  MJ)
kilocalorie kcal kcal 1.0  kcal (4.2  kJ)
calorie cal cal 1.0  cal (4.2  J)
millicalorie mcal mcal 1.0  mcal (4.2  mJ)
Calorie (thermochemical) Cal-th (kg-cal-th) Calth 1.0  Calth (4.2  kJ)
megacalorie (thermochemical) Mcal-th (g-cal-th) Mcalth 1.0  Mcalth (4.2  MJ)
kilocalorie (thermochemical) kcal-th (g-cal-th) kcalth 1.0  kcalth (4.2  kJ)
calorie (thermochemical) cal-th (g-cal-th) calth 1.0  calth (4.2  J)
millicalorie (thermochemical) mcal-th (g-cal-th) mcalth 1.0  mcalth (4.2  mJ)
Calorie (15°C) Cal-15 (kg-cal-15) Cal15 1.0  Cal15 (4.2  kJ)
megacalorie (15°C) Mcal-15 (g-cal-15) Mcal15 1.0  Mcal15 (4.2  MJ)
kilocalorie (15°C) kcal-15 (g-cal-15) kcal15 1.0  kcal15 (4.2  kJ)
calorie (15°C) cal-15 (g-cal-15) cal15 1.0  cal15 (4.2  J)
millicalorie (15°C) mcal-15 (g-cal-15) mcal15 1.0  mcal15 (4.2  mJ)
Calorie (International Steam Table) Cal-IT (kg-cal-IT) CalIT 1.0  CalIT (4.2  kJ)
megacalorie (International Steam Table) Mcal-IT (g-cal-IT) McalIT 1.0  McalIT (4.2  MJ)
kilocalorie (International Steam Table) kcal-IT (g-cal-IT) kcalIT 1.0  kcalIT (4.2  kJ)
calorie (International Steam Table) cal-IT (g-cal-IT) calIT 1.0  calIT (4.2  J)
millicalorie (International Steam Table) mcal-IT (g-cal-IT) mcalIT 1.0  mcalIT (4.2  mJ)
pound/ounce- foot/
inch- hour- minute- second
foot-poundal ftpdl ft⋅pdl 1.0  ft⋅pdl (0.042  J)
foot-pound force ftlbf ft⋅lbf 1.0  ft⋅lbf (1.4  J)
ftlb-f ft⋅lbf
foot-pound ftlb ft⋅lb
inch-pound force inlbf in⋅lbf 1.0  in⋅lbf (110  mJ)
inlb-f in⋅lbf
inch-pound inlb in⋅lb
inch-ounce force inozf in⋅ozf 1.0  in⋅ozf (7.1  mJ)
inoz-f in⋅ozf
horsepower-hour hph hp⋅h 1.0  hp⋅h (0.75  kWh)
British thermal unit multiples British thermal unit Btu Btu 1.0  Btu (1.1  kJ)
BTU BTU
million British thermal units MMBtu MMBtu 1.0  MMBtu (1.1  GJ)
e6BTU BTU
British thermal unit (IT) Btu-IT BtuIT 1.0  BtuIT (1.1  kJ)
BTU-IT BTUIT
British thermal unit (thermochemical) Btu-th Btuth 1.0  Btuth (1.1  kJ)
BTU-th BTUth
British thermal unit (ISO) Btu-ISO BTUISO 1.0  BTUISO (1.1  kJ)
BTU-ISO BTUISO
British thermal unit (39°F) Btu-39F Btu39°F 1.0  Btu39°F (1.1  kJ)
BTU-39F BTU39°F
British thermal unit (59°F) Btu-59F Btu59°F 1.0  Btu59°F (1.1  kJ)
BTU-59F BTU59°F
British thermal unit (60°F) Btu-60F Btu60°F 1.0  Btu60°F (1.1  kJ)
BTU-60F BTU60°F
British thermal unit (63°F) Btu-63F Btu63°F 1.0  Btu63°F (1.1  kJ)
BTU-63F BTU63°F
British thermal unit (mean) Btu-mean Btumean 1.0  Btumean (1.1  kJ)
BTU-mean BTUmean
quadrillion British thermal units quad quad assumes the 59 °F Btu and the " long scale" quadrillion (1015) 1.0  quad (1.1  EJ)
therm (EC) thm-EC thm (EC) 1.0  thm (EC) (110  MJ)
therm (UK) thm-UK thm (UK) 1.0  thm (UK) (110  MJ)
therm (US) thm-US thm (US) 1.0  thm (US) (110  MJ)
TNT-based units teratonne of TNT TtTNT (none) 1.0 teratonne of TNT (4.2  ZJ)
teraton of TNT TtonTNT (none)
gigatonne of TNT GtTNT (none) 1.0 gigatonne of TNT (4.2  EJ)
gigaton of TNT GtonTNT (none)
megatonne of TNT MtTNT (none) 1.0 megatonne of TNT (4.2  PJ)
megaton of TNT MtonTNT Mt
kilotonne of TNT ktTNT (none) 1.0 kilotonne of TNT (4.2  TJ)
kiloton of TNT ktonTNT kt
tonne of TNT tTNT (none) 1.0 tonne of TNT (4.2  GJ)
ton of TNT tonTNT (none)
kilogram of TNT kgTNT (none) 1.0 kilogram of TNT (4.2  MJ)
millitonne of TNT mtTNT (none)
milliton of TNT mtonTNT (none)
gram of TNT gTNT (none) 1.0 gram of TNT (4.2  kJ)
oil-based units gigatonne of oil equivalent Gtoe Gtoe 1.0  Gtoe (42  EJ)
megatonne of oil equivalent Mtoe Mtoe 1.0  Mtoe (42  PJ)
kilotonne of oil equivalent ktoe ktoe 1.0  ktoe (42  TJ)
tonne of oil equivalent toe toe 1.0  toe (42  GJ)
kilo barrel of oil equivalent kBOE (kbboe) kBOE 1.0  kBOE (6.1  TJ)
barrel of oil equivalent BOE BOE 1.0  BOE (6.1  GJ)
atmospheric-pressure-based units m3atm convert: unknown unit m3atm (none) 1.0  m3atm convert: unknown unit
scc convert: unknown unit scc (none) 1.0  scc convert: unknown unit
cm3atm convert: unknown unit cm3atm (none)
ccatm ccatm convert: unknown unit
Glatm convert: unknown unit Glatm (none) 1.0  Glatm convert: unknown unit
GLatm GLatm convert: unknown unit
Mlatm convert: unknown unit Mlatm (none) 1.0  Mlatm convert: unknown unit
MLatm MLatm convert: unknown unit
klatm convert: unknown unit klatm (none) 1.0  klatm convert: unknown unit
kLatm kLatm convert: unknown unit
sl convert: unknown unit sl (none) 1.0  sl convert: unknown unit
latm convert: unknown unit latm (none)
Latm Latm convert: unknown unit
mlatm convert: unknown unit mlatm (none) 1.0  mlatm convert: unknown unit
mLatm mLatm convert: unknown unit
scy convert: unknown unit scy (none) 1.0  scy convert: unknown unit
cuydatm convert: unknown unit cuydatm (none)
standard cubic foot scf (scfoot) scf long code "scfoot and cufootatm" outputs standard cubic foot and cubic foot of atmosphere respectively (and never feet) 1.0  scf (2.9  kJ)
cuftatm convert: unknown unit cuftatm (cufootatm) (none)
impgalatm convert: unknown unit impgalatm (none) 1.0  impgalatm convert: unknown unit
USgalatm convert: unknown unit USgalatm (usgalatm) (none) 1.0  USgalatm convert: unknown unit
U.S.galatm (usgalatm) U.S.galatm convert: unknown unit
Other foe foe (none) 1051 ergs 1.0  foe (1.0×1020  YJ)
Board of Trade Unit B.O.T.U. B.O.T.U. an obsolete UK synonym for kilowatt-hour 1.0  B.O.T.U. (3.6  MJ)
Celsius heat unit (International Table) CHU-IT CHUIT 1 BTUIT × 1 °C/°F 1.0  CHUIT (1.9  kJ)
thermie th th 1 McalIT 1.0  th (4.2  MJ)
Hartree Eh (Hartree) Eh 1.0  Eh (27  eV)
rydberg Ry Ry 1.0  Ry (14  eV)
cubic foot of natural gas cuftnaturalgas
(cufootnaturalgas)
(none) long code "cufootnaturalgas" outputs cubic foot of natural gas (and never feet) 1.0 cubic foot of natural gas (1.1  MJ)
From Wikipedia, the free encyclopedia
Energy
system unit code
(alternative)
symbol or
abbrev.
notes sample
default conversion
combinations
SI yottajoule YJ YJ 1.0  YJ (2.8×1017  kWh)
zettajoule ZJ ZJ 1.0  ZJ (2.8×1014  kWh)
exajoule EJ EJ 1.0  EJ (2.8×1011  kWh)
petajoule PJ PJ 1.0  PJ (280,000,000  kWh)
terajoule TJ TJ 1.0  TJ (280,000  kWh)
gigajoule GJ GJ 1.0  GJ (280  kWh)
megajoule MJ MJ 1.0  MJ (0.28  kWh)
kilojoule kJ kJ 1.0  kJ (240  cal)
hectojoule hJ hJ 1.0  hJ (24  cal)
decajoule daJ daJ 1.0  daJ (2.4  cal)
joule J J 1.0  J (0.24  cal)
decijoule dJ dJ 1.0  dJ (0.024  cal)
centijoule cJ cJ 1.0  cJ (0.0024  cal)
millijoule mJ mJ 1.0  mJ (0.00024  cal)
microjoule μJ (uJ) μJ 1.0  μJ (2.4×10−7  cal)
nanojoule nJ nJ 1.0  nJ (2.4×10−10  cal)
picojoule pJ pJ 1.0  pJ (6.2  MeV)
femtojoule fJ fJ 1.0  fJ (6.2  keV)
attojoule aJ aJ 1.0  aJ (6.2  eV)
zeptojoule zJ zJ 1.0  zJ (6.2  meV)
yoctojoule yJ yJ 1.0  yJ (6.2  μeV)
cgs megaerg Merg Merg 1.0  Merg (0.10  J)
kiloerg kerg kerg 1.0  kerg (0.10  mJ)
erg erg (none) 1.0  erg (0.10  μJ)
millierg merg merg 1.0  merg (0.00010  μJ)
microerg μerg μerg 1.0  μerg (0.00010  nJ)
microerg uerg μerg 1.0  μerg (0.00010  nJ)
Watt-hour multiples terawatt-hour TWh TWh 1.0  TWh (3.6  PJ)
TW.h
(TW·h, TW-h)
TW⋅h
gigawatt-hour GWh GWh 1.0  GWh (3.6  TJ)
GW.h
(GW·h, GW-h)
GW⋅h
megawatt-hour MWh MWh 1.0  MWh (3.6  GJ)
MW.h
(MW·h, MW-h)
MW⋅h
kilowatt-hour kWh kWh 1.0  kWh (3.6  MJ)
kW.h
(kW·h, kW-h)
kW⋅h
watt-hour Wh Wh 1.0  Wh (3.6  kJ)
W.h
(W·h, W-h)
W⋅h
milliwatt-hour mWh mWh 1.0  mWh (3.6  J)
mW.h
(mW·h, mW-h)
mW⋅h
microwatt-hour μWh (uWh) μWh 1.0  μWh (3.6  mJ)
μW.h
(uW·h, μW.h, uW.h, μW-h, uW-h)
μW⋅h
Electronvolt multiples petaelectronvolt PeV PeV 1.0  PeV (0.16  mJ)
teraelectronvolt TeV TeV 1.0  TeV (0.16  μJ)
gigaelectronvolt GeV GeV 1.0  GeV (0.16  nJ)
megaelectronvolt MeV MeV 1.0  MeV (0.16  pJ)
kiloelectronvolt keV keV 1.0  keV (0.16  fJ)
electronvolt eV eV 1.0  eV (0.16  aJ)
millielectronvolt meV meV 1.0  meV (0.16  zJ)
microelectronvolt μeV (ueV) μeV 1.0  μeV (0.16  yJ)
nanoelectronvolt neV neV 1.0  neV (0.00016  yJ)
picoelectronvolt peV peV 1.0  peV (1.6×10−7  yJ)
femtoelectronvolt feV feV 1.0  feV (1.6×10−10  yJ)
Calorie multiples calorie Cal (Calorie) Cal 1.0  Cal (4.2  kJ)
megacalorie Mcal Mcal 1.0  Mcal (4.2  MJ)
kilocalorie kcal kcal 1.0  kcal (4.2  kJ)
calorie cal cal 1.0  cal (4.2  J)
millicalorie mcal mcal 1.0  mcal (4.2  mJ)
Calorie (thermochemical) Cal-th (kg-cal-th) Calth 1.0  Calth (4.2  kJ)
megacalorie (thermochemical) Mcal-th (g-cal-th) Mcalth 1.0  Mcalth (4.2  MJ)
kilocalorie (thermochemical) kcal-th (g-cal-th) kcalth 1.0  kcalth (4.2  kJ)
calorie (thermochemical) cal-th (g-cal-th) calth 1.0  calth (4.2  J)
millicalorie (thermochemical) mcal-th (g-cal-th) mcalth 1.0  mcalth (4.2  mJ)
Calorie (15°C) Cal-15 (kg-cal-15) Cal15 1.0  Cal15 (4.2  kJ)
megacalorie (15°C) Mcal-15 (g-cal-15) Mcal15 1.0  Mcal15 (4.2  MJ)
kilocalorie (15°C) kcal-15 (g-cal-15) kcal15 1.0  kcal15 (4.2  kJ)
calorie (15°C) cal-15 (g-cal-15) cal15 1.0  cal15 (4.2  J)
millicalorie (15°C) mcal-15 (g-cal-15) mcal15 1.0  mcal15 (4.2  mJ)
Calorie (International Steam Table) Cal-IT (kg-cal-IT) CalIT 1.0  CalIT (4.2  kJ)
megacalorie (International Steam Table) Mcal-IT (g-cal-IT) McalIT 1.0  McalIT (4.2  MJ)
kilocalorie (International Steam Table) kcal-IT (g-cal-IT) kcalIT 1.0  kcalIT (4.2  kJ)
calorie (International Steam Table) cal-IT (g-cal-IT) calIT 1.0  calIT (4.2  J)
millicalorie (International Steam Table) mcal-IT (g-cal-IT) mcalIT 1.0  mcalIT (4.2  mJ)
pound/ounce- foot/
inch- hour- minute- second
foot-poundal ftpdl ft⋅pdl 1.0  ft⋅pdl (0.042  J)
foot-pound force ftlbf ft⋅lbf 1.0  ft⋅lbf (1.4  J)
ftlb-f ft⋅lbf
foot-pound ftlb ft⋅lb
inch-pound force inlbf in⋅lbf 1.0  in⋅lbf (110  mJ)
inlb-f in⋅lbf
inch-pound inlb in⋅lb
inch-ounce force inozf in⋅ozf 1.0  in⋅ozf (7.1  mJ)
inoz-f in⋅ozf
horsepower-hour hph hp⋅h 1.0  hp⋅h (0.75  kWh)
British thermal unit multiples British thermal unit Btu Btu 1.0  Btu (1.1  kJ)
BTU BTU
million British thermal units MMBtu MMBtu 1.0  MMBtu (1.1  GJ)
e6BTU BTU
British thermal unit (IT) Btu-IT BtuIT 1.0  BtuIT (1.1  kJ)
BTU-IT BTUIT
British thermal unit (thermochemical) Btu-th Btuth 1.0  Btuth (1.1  kJ)
BTU-th BTUth
British thermal unit (ISO) Btu-ISO BTUISO 1.0  BTUISO (1.1  kJ)
BTU-ISO BTUISO
British thermal unit (39°F) Btu-39F Btu39°F 1.0  Btu39°F (1.1  kJ)
BTU-39F BTU39°F
British thermal unit (59°F) Btu-59F Btu59°F 1.0  Btu59°F (1.1  kJ)
BTU-59F BTU59°F
British thermal unit (60°F) Btu-60F Btu60°F 1.0  Btu60°F (1.1  kJ)
BTU-60F BTU60°F
British thermal unit (63°F) Btu-63F Btu63°F 1.0  Btu63°F (1.1  kJ)
BTU-63F BTU63°F
British thermal unit (mean) Btu-mean Btumean 1.0  Btumean (1.1  kJ)
BTU-mean BTUmean
quadrillion British thermal units quad quad assumes the 59 °F Btu and the " long scale" quadrillion (1015) 1.0  quad (1.1  EJ)
therm (EC) thm-EC thm (EC) 1.0  thm (EC) (110  MJ)
therm (UK) thm-UK thm (UK) 1.0  thm (UK) (110  MJ)
therm (US) thm-US thm (US) 1.0  thm (US) (110  MJ)
TNT-based units teratonne of TNT TtTNT (none) 1.0 teratonne of TNT (4.2  ZJ)
teraton of TNT TtonTNT (none)
gigatonne of TNT GtTNT (none) 1.0 gigatonne of TNT (4.2  EJ)
gigaton of TNT GtonTNT (none)
megatonne of TNT MtTNT (none) 1.0 megatonne of TNT (4.2  PJ)
megaton of TNT MtonTNT Mt
kilotonne of TNT ktTNT (none) 1.0 kilotonne of TNT (4.2  TJ)
kiloton of TNT ktonTNT kt
tonne of TNT tTNT (none) 1.0 tonne of TNT (4.2  GJ)
ton of TNT tonTNT (none)
kilogram of TNT kgTNT (none) 1.0 kilogram of TNT (4.2  MJ)
millitonne of TNT mtTNT (none)
milliton of TNT mtonTNT (none)
gram of TNT gTNT (none) 1.0 gram of TNT (4.2  kJ)
oil-based units gigatonne of oil equivalent Gtoe Gtoe 1.0  Gtoe (42  EJ)
megatonne of oil equivalent Mtoe Mtoe 1.0  Mtoe (42  PJ)
kilotonne of oil equivalent ktoe ktoe 1.0  ktoe (42  TJ)
tonne of oil equivalent toe toe 1.0  toe (42  GJ)
kilo barrel of oil equivalent kBOE (kbboe) kBOE 1.0  kBOE (6.1  TJ)
barrel of oil equivalent BOE BOE 1.0  BOE (6.1  GJ)
atmospheric-pressure-based units m3atm convert: unknown unit m3atm (none) 1.0  m3atm convert: unknown unit
scc convert: unknown unit scc (none) 1.0  scc convert: unknown unit
cm3atm convert: unknown unit cm3atm (none)
ccatm ccatm convert: unknown unit
Glatm convert: unknown unit Glatm (none) 1.0  Glatm convert: unknown unit
GLatm GLatm convert: unknown unit
Mlatm convert: unknown unit Mlatm (none) 1.0  Mlatm convert: unknown unit
MLatm MLatm convert: unknown unit
klatm convert: unknown unit klatm (none) 1.0  klatm convert: unknown unit
kLatm kLatm convert: unknown unit
sl convert: unknown unit sl (none) 1.0  sl convert: unknown unit
latm convert: unknown unit latm (none)
Latm Latm convert: unknown unit
mlatm convert: unknown unit mlatm (none) 1.0  mlatm convert: unknown unit
mLatm mLatm convert: unknown unit
scy convert: unknown unit scy (none) 1.0  scy convert: unknown unit
cuydatm convert: unknown unit cuydatm (none)
standard cubic foot scf (scfoot) scf long code "scfoot and cufootatm" outputs standard cubic foot and cubic foot of atmosphere respectively (and never feet) 1.0  scf (2.9  kJ)
cuftatm convert: unknown unit cuftatm (cufootatm) (none)
impgalatm convert: unknown unit impgalatm (none) 1.0  impgalatm convert: unknown unit
USgalatm convert: unknown unit USgalatm (usgalatm) (none) 1.0  USgalatm convert: unknown unit
U.S.galatm (usgalatm) U.S.galatm convert: unknown unit
Other foe foe (none) 1051 ergs 1.0  foe (1.0×1020  YJ)
Board of Trade Unit B.O.T.U. B.O.T.U. an obsolete UK synonym for kilowatt-hour 1.0  B.O.T.U. (3.6  MJ)
Celsius heat unit (International Table) CHU-IT CHUIT 1 BTUIT × 1 °C/°F 1.0  CHUIT (1.9  kJ)
thermie th th 1 McalIT 1.0  th (4.2  MJ)
Hartree Eh (Hartree) Eh 1.0  Eh (27  eV)
rydberg Ry Ry 1.0  Ry (14  eV)
cubic foot of natural gas cuftnaturalgas
(cufootnaturalgas)
(none) long code "cufootnaturalgas" outputs cubic foot of natural gas (and never feet) 1.0 cubic foot of natural gas (1.1  MJ)

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