Convert m3 to GJ for natural gas, or GJ to m3, using a typical heating value (0.0373 GJ/m³), Dutch Groningen gas, or your supplier’s own factor.

Your gas bill or supplier may list an exact factor; choose Custom to enter it. Presets are typical values, so results are estimates.

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m³ To GJ Natural Gas Formula

The following formula is used to calculate the conversion from m³ to GJ in natural gas.

Gj = M3 × CF

Variables:

  • Gj is the energy content in gigajoules (GJ)
  • M3 is the volume of natural gas in cubic meters (m³)
  • CF is the conversion factor from cubic meters to gigajoules (GJ/m³)

To calculate the energy content in gigajoules, multiply the volume of natural gas in cubic meters by the conversion factor from cubic meters to gigajoules.

Cubic Meters to Gigajoules Conversion Table (Natural Gas, HHV ≈ 38 MJ/m³ = 0.038 GJ/m³)
Cubic Meters (m³) Gigajoules (GJ)
0.10.004
0.50.019
10.038
20.076
50.190
100.380
150.570
200.760
250.950
301.140
401.520
501.900
752.850
1003.800
1505.700
2007.600
2509.500
30011.400
50019.000
100038.000
* Rounded to 3 decimals. Assumes typical natural gas higher heating value (HHV) of 38 MJ/m³ (0.038 GJ/m³). Actual values vary by composition and conditions.

What Does “m³ to GJ Natural Gas” Mean?

m³ to GJ Natural Gas refers to the conversion of cubic meters (m³) to gigajoules (GJ) in the context of natural gas. This is a measure of the energy content of the gas. The conversion is necessary because natural gas is often measured by volume (cubic meters) but its energy is measured in heat units (gigajoules). The conversion factor varies with composition, volume conditions and HHV or LHV basis. Use the matching factor from your supplier. The table below assumes HHV 0.038 GJ/m³ only as an illustration.

How to Calculate m³ To GJ Natural Gas?

The following steps outline how to calculate the energy content in gigajoules (GJ) for a given volume of natural gas in cubic meters (m³) using the conversion factor (CF).


  1. First, determine the volume of natural gas in cubic meters (m³).
  2. Next, determine the conversion factor (CF) from cubic meters to gigajoules (GJ/m³).
  3. Next, gather the formula from above: Gj = M3 * CF.
  4. Finally, calculate the energy content in gigajoules (Gj) by multiplying the volume of natural gas (M3) by the conversion factor (CF).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem:

Use the following variables as an example problem to test your knowledge:

Volume of natural gas (M3) = 50

Conversion factor (CF) = 0.038 GJ/m³. Energy = 50 × 0.038 = 1.9 GJ. Select Energy from gas volume and enter these values.