NGA Emission Factors Lookup: 2025 Edition (Archived)
Look up Australian National Greenhouse Accounts (NGA) emission factors for Scope 1 fuels, Scope 2 electricity by state, and common refrigerants. Plus a quick built-in calculator.
Source: DCCEEW NGA Factors 2025 (AR5 GWPs). Factors are rounded for quick reference and reflect the August 2025 NGA workbook (Tables 1, 5, 6, 8, 9, 11). For compliance, audit, or AASB S2 reporting, always verify against the latest official DCCEEW NGA Factors workbook. NGA Factors are updated annually; electricity factors in particular shift each year as the renewable energy mix evolves.
Quick lookup
Quick conversion calculator
Pick a factor above, then enter your activity quantity to estimate emissions in tCO2-e.
Common factors at a glance
The 15 most-requested factors for Australian SMEs. Niche fuels (biodiesel, SAF, blast furnace gas, refinery products) and Scope 3 natural gas by state are available in the lookup dropdown above. All values rounded; verify against the latest DCCEEW workbook for compliance work.
| Item | Scope 1 / 2 | Scope 3 | Unit |
|---|---|---|---|
| Diesel oil (transport) | 2.72 | 0.67 | kgCO2-e per L |
| Petrol, automotive | 2.31 | 0.59 | kgCO2-e per L |
| LPG (automotive) | 1.60 | 0.53 | kgCO2-e per L |
| Natural gas (stationary, pipeline) | 51.53 | state-dep. | kgCO2-e per GJ |
| Electricity, QLD grid | 0.67 | 0.09 | kgCO2-e per kWh |
| Electricity, NSW/ACT grid | 0.64 | 0.03 | kgCO2-e per kWh |
| Electricity, VIC grid | 0.78 | 0.09 | kgCO2-e per kWh |
| Electricity, SA grid | 0.22 | 0.04 | kgCO2-e per kWh |
| Electricity, WA (SWIS) | 0.50 | 0.06 | kgCO2-e per kWh |
| Electricity, WA (NWIS) | 0.56 | 0.09 | kgCO2-e per kWh |
| Electricity, TAS grid | 0.20 | 0.03 | kgCO2-e per kWh |
| Electricity, NT (DKIS) | 0.56 | 0.09 | kgCO2-e per kWh |
| Refrigerant R-410A (AR5) | 1,924 | - | kgCO2-e per kg |
| Refrigerant R-134a (AR5) | 1,300 | - | kgCO2-e per kg |
| Refrigerant R-32 (AR5) | 677 | - | kgCO2-e per kg |
How to use NGA emission factors
- Choose the factor that matches your activity, fuel type, location and reporting period.
- Multiply the activity quantity by the factor, then convert kilograms of CO2-e to tonnes where required.
- Record the factor, unit, source edition and any assumptions in your methodology notes.
NGA Factors support voluntary corporate inventories, tender responses and supplier reporting. They are not the prescribed factors for reporting under the National Greenhouse and Energy Reporting Act 2007. Check the requirements that apply to your report before using any factor.
Edition check: DCCEEW released the 2026 NGA Factors in August 2026, superseding this 2025 edition. Confirm the latest edition on the official NGA Factors page before finalising a calculation.
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