To access the ADVANCED CALCULATION FEATURES of this calculator, you will need to register or login

You will be able to estimate most* annual greenhouse gas emissions (both direct and indirect) with this calculator and get an indication of the most common greenhouse gas emitting activities. Please note, it is NOT designed to replace a comprehensive Carbon Footprint Analysis.  

Gathering information - you will need to refer to electricity bills, vehicle log books and travel agent spreadsheets.  If you have difficulty, averages are often available to make it easy.

*Please contact us if you wish to calculate emissions not shown [e.g. freight, staff travel, office consumables (other than paper), water, aviation fuel and fridge/chiller (fugitive) emissions].

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Vehicles 0 t CO2


Assumes an annual travel period

Assumes annual travel distance of 15,000 km

Includes Scope 1 (direct) and Scope 3 (indirect) emissions

My Vehicles

You have not added any vehicles

Electricity 0 t CO2

Kilowatt Hours


The emission factor used is the weighted average for all Australian States.

My Electricity

You have not added any electricity

Gas 0 t CO2




On your gas bill 1 unit = 1 kWh (unless otherwise stated)

LPG = bottled gas

Please use the 'Vehicles' Tab if your car runs on gas.

NOTE: for Northern Territory and Tasmania the next closest state factors are used, as data for these states is confidential and not published.

My Gas

You have not added any Gas

Waste 0 t CO2



Assumes weekly collection frequency

Inert waste (including concrete, metal, plastics and glass) will not break down and produce methane.  Therefore, emissions from this category are zero.


My Waste

You have not added any waste

Water 0 t CO2


Based on average volume (kL) of residential water supply per property in each state.

My Water

You have not added any water

Paper 0 t CO2



If your type of paper is unknown, select Virgin

The average A4 reem of 80gsm weighs 2.5kgs

My Paper

You have not added any paper

Air Travel 0 t CO2


Our standard calculator bases distance on the following journeys

  • Short Haul - Melbourne to Adelaide - return
  • Medium Haul - Sydney to Perth - return
  • Long Haul - Melbourne to London (via Doha) - return

Choose 'Average' if you do not know the seat classification


An RFI of 1.9 is applied against CO2

What is Radiative Forcing Index (RFI)?:  The IPCC (Intergovernmental Panel on Climate Change) has identified that aircraft emissions at altitude have a greater impact on the atmosphere due to other non-CO2 climate change effects from aviation (e.g. NOx, water vapour, contrails) and the RFI factors allows for these other impacts

My Flights

You have not added any flights

Public Transport 0 t CO2



Use 'Average Passenger Load' for off-peak travel

My Commutes

You have not added any commutes

Events 0 t CO2



Food & Drink


Giveaways & Promotional Materials


When calculating your event emissions, include other calculations such as travel, electricity, waste, and so on and add to a saved calculation to get the total emissions for an event.

My Events

You have not added any events

Emission factors are updated regularly to industry standards.  For details of the sources used in this calculator, please see About Our Calculator.


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