Work out your jet fuel emissions
= 125.97 tonnes CO2e in 2026 (Scope 1)
Each litre × 2.519 kg CO2e, the Ministry for the Environment's 2026 figure (Aviation fuel - Kerosene (litre)).
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Aviation fuel emission factors in the 2026 guide
| Factor (as the Ministry names it) | Unit | kg CO2e | CO2 | CH4 | N2O |
|---|---|---|---|---|---|
| Aviation fuel - Kerosene (litre)Transport Fuel › Transport Fuel | per litre | 2.519 | 2.5 | 0.0004895 | 0.01853 |
| Aviation fuel - Kerosene (GJ)Transport Fuel › Transport Fuel | per GJ | 68.45 | 67.94 | 0.0133 | 0.5035 |
| Aviation gas (litre)Transport Fuel › Transport Fuel | per litre | 2.249 | 2.232 | 0.0004504 | 0.01705 |
| Aviation gas (GJ)Transport Fuel › Transport Fuel | per GJ | 66.41 | 65.89 | 0.0133 | 0.5035 |
CO2, CH4 and N2O are each gas's share of the total, in kg CO2e; a dash means the guide gives no figure for that gas. Every figure is from the 2026 guide; it is the only edition we hold, so there is no year-on-year column.
The Ministry's notes on these figures
- Uncertainty figures are taken from New Zealand's Greenhouse Gas Inventory.
- Uncertainty: CO2e ±1.06%, CO2 ±1.0%, CH4 ±50.0%, N2O ±50.0%.
Worked example
Take a helicopter or turboprop operator using 50,000 litres of jet fuel a year. 50,000 litres × 2.519 kg CO2e = 125.97 tonnes CO2e, reported as Scope 1.
How to use it
These factors are for aircraft your business operates and fuels. Flights taken on an airline are not your fuel; use the domestic or international flight factors per passenger-km for those.
Jet kerosene is for turbine engines (jets, turboprops and turbine helicopters); avgas is for piston engines. The guide also gives both per GJ, for fuel bought by energy content.
Which rules apply in New Zealand
The Ministry's guide is voluntary guidance for organisations measuring their greenhouse gas emissions, and follows the GHG Protocol and ISO 14064-1. Climate reporting entities under New Zealand's climate-related disclosures regime report under the External Reporting Board's Aotearoa New Zealand Climate Standards, and can use these factors for their Scope 1, 2 and 3 figures. Businesses of any size answering a customer's or a bank's request for emissions data can use them in the same way. Cite the guide and its year next to every figure.
UK companies with sites or staff in New Zealand should use these factors for that activity and the UK government factors for UK activity. In Carbon Recycling, set a site's country to New Zealand and its electricity is reported with the Ministry's factor. See reporting overseas sites for how the rest fits together.
Where to find your own figure
Fuel uplift records or your fuel supplier's invoices list litres for each aircraft.
Related emission factors
- Electricity (New Zealand): 0.07866 kg CO2e per kWh
- Natural gas (New Zealand): 0.1954 kg CO2e per kWh
- Diesel (New Zealand): 2.672 kg CO2e per litre
- All New Zealand emission factors
- New Zealand grid electricity (Ember's estimate, every year since 2000)
- UK emission factors and other countries
Source: Ministry for the Environment. 2026. Measuring emissions: A guide for organisations: 2026 emission factors (version 2). Crown copyright, licensed under CC BY 4.0. Carbon Recycling is not affiliated with or endorsed by the Ministry; the sums on this page are ours.