Choose a Calculator

The listed online carbon calculators are available for free usage and are offered as suggestions.  Feel free to use other calculators that you might like.

Younger Students/Lower Elementary
EPA offers a great tool for the younger students. 
http://epa.gov/climatechange/kids/calc/index.html

Upper Elementary/Middle School
This calculates a per student footprint. Add scores together for final score.
http://calc.zerofootprint.net/youth/

Middle School/High School
Good for older students.Downloadable EXCEL sheet allows for easy calculations.
www.coolschoolchallenge.com

Good sites for background information or alternative footprint calculations:
www.greenschools.net
www.myfootprint.org