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CO₂ Emissions Calculator

Estimate carbon dioxide emissions from burning petrol, diesel, LPG, or natural gas and from electricity use with your own grid factor.

About CO₂ Emissions Calculator

Carbon dioxide from fuel is estimated by multiplying the amount burned by an emission factor. This calculator uses approximate combustion factors: 2.31 kg CO₂ per litre of petrol, 2.68 per litre of diesel, 1.51 per litre of LPG, and 1.92 per cubic metre of natural gas. Electricity depends on how it is generated, so you enter the factor for your grid. Emissions from producing and transporting the fuel are not included.

How to use CO₂ Emissions Calculator

  1. Fill in "Fuel", "Fuel amount", "Electricity used" and "Grid emission factor".
  2. The result appears below and updates as you type.
  3. Copy the result with the copy button, or download it as a file where that is offered.

Questions about CO₂ Emissions Calculator

Where do I find the emission factor for my electricity?

National energy agencies and many electricity suppliers publish an annual figure in kg or g of CO₂ per kWh. It ranges from under 0.05 on grids dominated by hydro or nuclear power to above 0.7 on coal-heavy grids.

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