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British thermal unit (ISO)
Symbol:  Btu (ISO) 
Category:  Energy 
SI Equivalent:  1055.06 J
Dimension ML2T-2 
System:  UK 
Convert     Btu (ISO)  
59 conversions, showing those commonly used | Show all
1 Btu (ISO) =
Energy
  Symbol Unit Name
1.72395×10-7  bboe  barrel oil equivalent 
Btu (IT)  British thermal unit (IT) 
0.999233  Btu (mean)  British thermal unit (mean) 
1.00067  Btu (therm.)  British thermal unit (thermochemical) 
0.252407  Cal, kcal  Calorie (diet kilocalorie) 
251.803  calmean  calorie (mean) 
252.165  cal (therm.)  calorie (thermochemical) 
6.58516×1021  eV  electronvolt 
1.05506×1010  erg  erg 
778.172  ft-lbf  foot-pound force 
2.5037×104  ft-pdl  foot-poundal 
3.93016×10-4  Hp-h  horsepower (550ft-lbf/s)-hour 
1055.06  J  joule 
0.252075  kcal15  kilocalorie (15°C) 
0.250936  kcal4  kilocalorie (4°C) 
1.05506  kJ  kilojoule 
2.52407×10-10  kt (TNT)  kiloton TNT equivalent 
2.93072×10-4  kWh  kilowatt-hour 
6.58516×1015  MeV  megaelectronvolt 
1.05506×10-3  MJ  megajoule 
2.52407×10-13  Mt (TNT)  megaton TNT equivalent 
3.60212×10-8  tce  tce (tonne coal equivalent) 
1.00024×10-5    therm (US) 
2.52407×10-7  ton (TNT)  ton TNT equivalent 
0.293072  Wh  watt hour 
more...
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