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Fuel Equivalents - Online Calculator

Online fuels energy equivalents calculator for oil, gas and more.

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

  • Standard reference fuels are statistical units of a defined gross heat content
  • Natural gas equivalents assume 1000 Btu/ft3 gross - or 9400 kcal/Nm3 or 39.4 MJ/Nm3 

Fuel energy equivalents chartDownload and print Fuel Energy Equivalents chart

Example - Convert from Btu to Natural gas nm3

The equivalent of 100 Btu energy can be approximated to 0.0025 nm3 of natural gas as indicated in the chart below.

Fuel energy equivalents chart - example

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