Energy Calculators

This online calculator converts from one energy unit to another - from gallons to British thermal units (Btu), kilowatt/hours to megajoules, short tons to metric tons.

Go To:

U.S. Energy Information Administration

Notes From Our Reviewers

The CLEAN collection is hand-picked and rigorously reviewed for scientific accuracy and classroom effectiveness. Read what our review team had to say about this resource below or learn more about how CLEAN reviews teaching materials

Teaching Tips

Teaching Tips

The link on the bottom of the page-- has good information about the basics of energy.

The EIA Energy Kids website (]) provides good background information and resources for learners about energy in general, and the EIA website ([ has current information and access to energy data that can be used by students and teachers for lessons.

Literacy and Resources