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Engineering ToolBox > Online Fuel Equivalents Calculator

Online calculator to compute the fuels equivalents - oil and gas

The calculator below can used to convert between common fuel energy units:

Value

J (Joule)
kJ (kilo Joule)
kWh
Nm³ natural gas
ft³ natural gas
tonn coal equivalent (tce)
tonn oil equivalent (toe)
barrel oil equivalent (boe)
kcal
Btu

• Standard reference fuels are statistical units of a defined gross heat content
• Natural gas equivalents assume 1,000 Btu/ft³ gross - or 9,400 kcal/Nm³ or 39.4 MJ/Nm³