NGA Emission Factors Lookup
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.
Quick lookup
This factor is one input. A full inventory also needs your activity data, the organisational boundary, and a note of the NGA edition. The lookup stays free.
If you want help turning the factors into a documented file, see Carbon Footprint Analysis or contact Aethiro. A narrower tender file is the Tender-Ready Carbon Snapshot.
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 | 0.65 | 0.11 | kgCO2-e per kWh |
| Electricity, NSW/ACT grid | 0.60 | 0.07 | kgCO2-e per kWh |
| Electricity, VIC grid | 0.74 | 0.11 | kgCO2-e per kWh |
| Electricity, SA grid | 0.21 | 0.03 | kgCO2-e per kWh |
| Electricity, WA (SWIS) | 0.45 | 0.10 | kgCO2-e per kWh |
| Electricity, WA (NWIS) | 0.56 | 0.09 | kgCO2-e per kWh |
| Electricity, TAS grid | 0.23 | 0.03 | kgCO2-e per kWh |
| Electricity, NT (DKIS) | 0.55 | 0.10 | 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 listed the 2026 NGA Factors as the current edition when this page was reviewed on 7 September 2026. Confirm the latest edition on the official NGA Factors page before finalising a calculation.
Doing this for a tender or contract bid?
Factors are only the start. Tender assessors want a documented methodology, a source data trail, and a signed-off inventory, not a spreadsheet. The Tender-Ready Carbon Snapshot™ provides a focused Scope 1 and 2 package. Timing depends on the tender requirements and available records and is agreed before work starts.
If the job is a full inventory rather than a tender file, see Carbon Footprint Analysis, or book a call to talk it through. If you only needed the factor, you can stop here.
Got the numbers, now need the report?
We prepare a carbon inventory for the agreed scope, with timing confirmed after reviewing your requirements and records. Used by Australian SMEs for tenders, contracts, and supplier questionnaires.