Carbon Calculators

For small businesses and domestic users

The carbon calculators are provided free to use

You can show your appreciation by...

Supporting our projects that reduce carbon emissions around the world. You can do this by clicking the offset button following your assessment, or maybe choose to plant a tree (or 2) in the UK or Kenya. Following your contribution you can download a personalised certificate and a VAT receipt.

By supporting these projects you help reduce emissions around the world.

Thank you for your support!

 For Small Businesses


 For Individuals

menu_business_calc.jpg   menu_household_calc.jpg
To use the business calculate first login or create an account. An account is quick, FREE and easy to set up.

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.  


Start calculating your personal carbon footprint now

Quick Start

or create an account, to save your results and more... 

Login / Register





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