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Carbon Emissions Calculator

Car use:
How many thousands of kilometres do you drive per year on average?
Is your car (click the appropriate option):
(a) petrol-engined, under 1.4 litres
(b) petrol-engined, 1.4 litres or higher
(c) diesel-engined, under 2 litres
(d) diesel-engined, 2 litres or higher
Total emissions for car (tonnes CO2):
Air Travel:
How many return flights you have taken in the last 12 months? (NB. A single (one way) flight counts as half.)
Short-haul: Medium-haul: Long-haul:
Total emissions for flights (tonnes CO2):

If you use electricity from a renewable source then skip this section and move onto Gas. Enter the value of your electricity bills below. If you can, use your bills for the whole year if you have them, as this will cover seasonal variations. If you do not have bills for the last twelve months, you can estimate your total, for example by taking the last quarterly bill and multiplying it by four.
Annual electricity bill: AUD
Total emissions for electricity consumption (tonnes CO2):

Annual gas bill: AUD
Total emissions for gas consumption (tonnes CO2):

Total of all emissions:
Total of all emissions (tonnes CO2) for this year:

Off-setting Emissions:
Number of trees required to be planted to offset emmisions for this year:

One "tree planted" corresponds to 41m2 of oak woodland matured over a period of 100 years, as calculated by the Edinburgh Centre for Carbon Management. 39% of the carbon is in fact stored in the woodland soil. For details, visit

To purchase trees to off set your carbon usage go to our Donation Form: