Free Carbon Calculators

For small businesses and domestic users


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Note: This free online Business Carbon Footprint Calculator has been designed for micro and small sized businesses. Please contact us if you need to calculate emissions for larger corporates, so we can ensure you are using the most suitable tools to meet your needs.

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These free to use online carbon calculator tools are independently audited on an annual basis as part of the Quality Assurance Standard (QAS) for Carbon Offsetting. As part of the QAS we are also audited to ensure all carbon offsets sold on this web site meet the stringent QAS requirements.

Note: the Secondary Footprint calculation in the Household calculator is based on estimates produced by Carbon Footprint Ltd, and is therefore not included within the QAS approval system.

More information on the QAS...



Add our calculator tools to your web site

For instruction on how to add our FREE calculator tools to your web site visit our Calculator Tools Page