Carbon Calculator Methodology


Select the country you live in

The International Energy Agency publishes annual world energy statistics, determined by region and by country and includes such information as energy usage quantity and type as well as C02 emission volume per capita.

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Select the number of people you are offsetting

For convenience, we have created the groups for usage calculations, making it easier for you and your partner or family to calculate your footprints. Information for all countries and regions, except the USA and Canada, are available from the International Energy Agency world energy statistics.

In the USA, the Energy Information Administration provides official U.S. Government energy statistics that we represent in our calculations. For Canadian calculations, the National Energy Board provides energy reports, statistics and pricing which has been incorporated into our modeling.

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Select the size of vehicle you drive then enter your annual mileage

Gas mileage and usage varies based on many factors including weather, road conditions, driving habits, maintenance habits, use of air conditioning as well as by vehicle make, model and optional or country specific emissions equipment. The numbers we are using are based on the most reliable source available that demonstrates a trusted methodology in formulating averaged carbon emissions for vehicle types and mileage.

If you are driving a diesel fuel vehicle, there is typically a 30% reduction in emissions which is factored when you select this on the calculator.

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Select the number of flights you take annually

The World Resource Institute provides averaged carbon emissions for air travel with intervals based on short, medium or long duration flights. Most emissions for flight are caused at take-off and landing, with the in-flight multiplier based on distance traveled per flight. Each airplane type, make and model have different emissions variables, so consider the output as a approximation as opposed to an exact figure.

These calculations do not take in to account any layovers. To account for stop-overs, each leg of the total flight would count as separate flights.

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Energy usage

Electricity and heating source emissions for regions and countries around the world are calculated by the International Energy Agency, taking in to account the emissions based on different energy sources. The figures we use for calculation are based on a per-capita basis.

In the USA, the Energy Information Administration provides localized information that is based on the power generation resources on a per state basis, cross-referenced with current pricing variables to determine the emissions based on the average billing amount by type of energy production.

In Canada, the National Energy Board provides the localized emissions information and power generation output per province and territory, which we cross reference with the market pricing variables for each fuel type to determine emissions based on your monthly bill.

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