Specific Weight of Natural Gas: Weight of 1 m³ and Value Table

Natural gas is a mixture of gases whose main component is usually methane. It is used for heating, water heating, cooking, industrial equipment and fuel applications.

The weight of one cubic meter of natural gas is not a fixed value. It depends on gas composition, temperature, pressure and measurement conditions. For practical estimates, reference ranges are usually used.

Natural Gas Weight Table

For dry natural gas under normal conditions, the approximate density is often in the range of 0.68-0.85 kg/m³.

If an exact value is required, the gas composition and measurement conditions must be known. For household and preliminary technical estimates, the table should be treated only as a reference.

Specific Weight Calculation

Specific weight is calculated with the formula:

γ = ρ × g

where:

• γ is specific weight;
• ρ is gas density;
• g is gravitational acceleration, approximately 9.81 m/s².

If natural gas density is taken as 0.68-0.85 kg/m³, its specific weight is approximately 6.7-8.3 N/m³.

What Affects Natural Gas Density

Natural gas density and mass depend on:

• methane content and the share of other gases in the mixture;
• gas temperature;
• system pressure;
• moisture and impurities;
• measurement conditions.

In liquefied form, gas has different parameters, so values for gaseous natural gas should not be applied to LNG or other storage forms.

Conclusion

For preliminary calculations, 1 m³ of natural gas can be taken as approximately 680-850 g. For technical, commercial or design calculations, use supplier data, standards or measurement results.