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British thermal unit (IT)
Symbol:  Btu (IT) 
Category:  Energy 
SI Equivalent:  1055.06 J
Dimension ML2T-2 
System:  UK 
 
Notes
The Btu (IT) is defined as the energy whose magnitude is such that one Btu per pound is equal to 2326 joules per kilogram.
Convert     Btu (IT)  
1 Btu (IT) =
Energy
  Symbol Unit Name
2.42×1020  Eh  a.u. of energy 
1.72395×10-7  bboe  barrel oil equivalent 
1.72395×10-7  bboe  bboe (barrel oil equivalent) 
6.58515×1012  BeV  BeV (billion eV) 
Btu (ISO)  British thermal unit (ISO) 
0.999233  Btu (mean)  British thermal unit (mean) 
1.00067  Btu (therm.)  British thermal unit (thermochemical) 
252.105  cal15  calorie (15°C) 
250.936  cal4  calorie (4°C) 
0.252407  Cal, kcal  Calorie (diet kilocalorie) 
252  cal (IT)  calorie (IT) (International Steam Table) 
251.803  calmean  calorie (mean) 
252.165  cal (therm.)  calorie (thermochemical) 
0.555535  Chu  Celsius-heat unit 
1055.06  C-V  coulomb volt 
1.04126×104  cm3-atm  cubic centimeter-atm 
0.367719  ft3-atm  cubic foot atm 
6.58515×1021  eV  electronvolt 
1.05506×1010  erg  erg 
778.171  ft-lbf  foot-pound force 
2.5037×104  ft-pdl  foot-poundal 
6.58515×1012  GeV  gigaelectronvolt 
252  gram-cal  gram calorie 
2.42×1020  Eh  hartree 
3.93016×10-4  Hp-h  horsepower (550ft-lbf/s)-hour 
9338.05  in-lbf  inch pound force 
1055.06  J  joule 
0.252075  kcal15  kilocalorie (15°C) 
0.250936  kcal4  kilocalorie (4°C) 
6.58515×1018  keV  kiloelectronvolt 
1.05506  kJ  kilojoule 
2.52407×10-10  kt (TNT)  kiloton TNT equivalent 
2.93072×10-4  kWh  kilowatt-hour 
6.58515×1015  MeV  megaelectronvolt 
1.05506×10-3  MJ  megajoule 
2.52407×10-13  Mt (TNT)  megaton TNT equivalent 
1055.06  N-m  newton meter 
1.00006×10-18    Q unit 
1×10-15  quad  quad 
1×10-15  quad  quadrillion 
4.84001×1020  Ry  rydberg 
3.60212×10-8  tce  tce (tonne coal equivalent) 
1×10-5    therm (EEG) 
1.00025×10-5    therm (US) 
2.52075×10-4  th15 °C  thermie (15°C) 
2.51985×10-8  toe  toe (tonne oil equivalent) 
2.52407×10-7  ton (TNT)  ton TNT equivalent 
3.60212×10-8  tce  tonne coal equivalent 
2.51985×10-8  toe  tonne oil equivalent 
0.293072  Wh  watt hour 
Moment, Torque
  Symbol Unit Name
1.05506×1010  dyn-cm  dyne-centimeter 
1.07586×107  gf-cm  gram force-centimeter 
107.586  kgf-m  kilogram force-meter 
1.05506×105  N-cm  newton-centimeter 
1055.06  N-m  newton-meter 
1.49409×105  ozf-in  ounce force-inch 
778.171  lbf-ft  pound force-foot 
9338.05  lbf-in  pound force-inch 
2.5037×104  pdl-ft  poundal-foot 
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