How big is your carbon footprint?

Before thinking about efficient ways to reduce our impact on the planet, we need to know exactly how much our different behaviors impact our carbon footprint.

Our International Student Footprint Calculator will allow you to do just that! The questionnaire is divided into four parts: transportation, home energy and appliances, food and personal purchases.

Answer the questions as honestly as possible and keep an eye on your amount of CO2 release per year at the bottom of the screen as you continue. You may be alarmed at times by the results!


When you are ready to start your footprint calculation:


Notes
  • (May 12, 2015) A brand new version of the calculator, with full mobile compatibility and updated data, is now available! And just added (Sep 12, 2016): improved mobile compatibilty, and students from registered classes can now choose their school!
  • We offer — and strongly suggest that you use — the ability to register at the site, so that your data will be automatically saved as you progress. That way you can complete the calculator questionnaire in more than one sitting, and return anytime to explore all of the features of the calculator and to update your footprint calculation based on lifestyle changes.
  • If you should encounter any problem with the new calculator, please email Jason Hodin (seastar[at]stanford.edu) and he will try to help.
  • Once you start the questions, keep in mind that it can take 25-30 minutes or more for English-proficient students to complete them (50 minutes for those for whom English is a second language).
  • We suggest that students fill out this Calculator Prep Worksheet in advance, it will make the online calculation faster and more accurate. (DOC format or PDF format)(May 12, 2015) now updated with new calculator options (e.g., LED lights)!
  • You may wish to download our class assignment to reflect on what you discover as you use the calculator.
  • (updated May 2015) You may also wish to download this pictorial key to the features of our calculator (or this one for our mobile/tablet version).
  • (NEW Aug 2016) Teachers and students may wish to download this source document with all of the sources and assumptions available in a single pdf file for all questions in the calculator. Note that all sources/assumptions are also available on demand during the calculations when you press the documentation button, which looks like this:
  • As of March 2013, a German language version of the calculator is available! (Flash only — no mobile version yet).
  • Privacy policy: we will never share any personal information derived from footprint calculations or any other I2SEA effort with any third party. We further suggest that students register using their first name and last initial, especially on the discussion platform. We utilize anonymous footprint data for educational purposes only - students will never be personally identified by their footprint data to anyone except the student themselves.
Copyright © 2017 I2SEA, all rights reserved.