Calculate your personal carbon footprint for free

Get a clearer picture of emissions from your household energy and travel with Sustrax Vita. Start with your own activity data, explore the results, and identify where a change could make a difference.

Try Sustrax Vita here

Load the calculator when you are ready. You can also use the new-tab option for more space, especially on mobile. The calculator is provided by Sustrax.

Open calculator in a new tab

What can I calculate?

Sustrax Vita helps estimate a personal or household footprint from home energy and travel. It is a useful starting point for understanding those activities, rather than a complete life-cycle assessment of everything you buy or do.

Before you start

  • Choose a period you want to measure, such as the last year.
  • Gather electricity and fuel consumption where available.
  • Have car mileage or fuel-use information ready.
  • List flight routes and public transport journeys for the same period.

Check whether an entry describes one person or the whole household so you interpret the final total consistently.

Understand your result

Your footprint is an estimate based on the data entered and the emission factors applied. Compare the main contributors and consider which activities you can change. If information is missing, improve it before drawing conclusions from small changes in the total.

Can I use Vita for my business?

For an annual business footprint with a results total and PDF report, choose Sustrax Lite. It has a separate business account and a range of paid upgrades when you need more inputs or sites.

Need help using a carbon calculator?

Read the Carbon Footprint calculator FAQs, or compare the available free tools.

A free carbon calculator for your website

Bring Sustrax Vita or Lite to your visitors with ready-to-copy iframe code. Get the calculator embed code and setup guide, or explore affiliate and reseller opportunities.

Looking for software for your own team? Start a free Sustrax MX trial.