If you want to calculate the carbon footprint that is caused by travel and transport on a festival, you can use online tools provided by different organizations from the live events industry:

• DGTL: DGTL festival’s calculator is supposed to be used to calculate the emissions caused by traveling to and from the festival, but it can be used to calculate journeys everywhere. The tool can be used to calculate flight emissions, emissions from ground transport and even emissions caused by accommodation.
• Ecolibrium: This calculator is for artists, crew, contractors, visitors and participants. It has multiple UK events preset to choose from. There is also an option to donate money to two environmental initiatives to offset the calculated travel emissions. Ecolibrium also offers this service as an app for phones.
• We Love Green: This tool calculates the carbon footprint caused by traveling to the French festival. There is an option to offset any calculated carbon by paying for the planting of trees.