How to Convert Therms to BTUs

By Tallulah Philange; Updated April 24, 2017
The conversion of gas to heat is measured in BTU.

A British thermal unit (BTU) is the amount of heat needed to increase 1 lb. of water by 1 degree Fahrenheit. A therm also is a measurement of heat, and therefore the equation is an energy conversion. You may need to convert therms to BTU as part of a school project. Homeowners may also need to convert therms to BTU if they are trying to figure out prices on utilities such as natural gas or air conditioning. Converting between the two is simple because the conversion factor is 100,000.

Write down the amount of therms you wish to convert.

Multiply the therms by 100,000. For example, 5 therms equals 500,000 BTU.

Figure out the conversion on paper by moving the decimal point of the therms to the right five times. Use a calculator as an alternative.

Convert BTU back to therms by dividing by 100,000, or moving the decimal point back, or to the left, five spaces.

About the Author

Tallulah Philange has worked as a journalist since 2003. Her work has appeared in the "Princeton (N.J.) Packet," "Destinations" magazine and in higher education publications. She also has edited and produced online content for those publications. Philange holds a Bachelor of Arts in print journalism from American University and a Master of Arts in communication, culture and technology from Georgetown University.