Here’s a neat calculator from the National Geographic site, a personal energy meter to calculate individual carbon footprints.
Calculate your own energy use.
This website will help you convert energy units if needed. http://www.onlineconversion.com/energy.htm
And don’t forget to divide total household usage by the number of people in your household to calculate per capita energy usage.
Here is a link to National Geographic’s main article that asks: How can we power our planet responsibly? big questions