Use this calculator, develeloped by the Australian Government, to determine the carbon output of individual vehicles.This is very useful for local governments in determining the carbon footprint of their fleet and for demonstrating benefits for alternative transport modes.

For every litre of petrol used in a motor vehicle, 2.3 kilograms of carbon dioxide (CO₂ ), a major greenhouse gas, is released from the exhaust. The Australian transport sector accounts for around 76 million tonnes of Australia's total net greenhouse gas emissions, representing 13.5 per cent of Australia's total emissions.