## Convert zettawatthour to therm [U.S.]

 zettawatthour therm [U.S.]

 Did you mean to convert zettawatthour to therm [Europe] therm [U.S.]

How many zettawatthour in 1 therm [U.S.]? The answer is 2.9300111111111E-17.
We assume you are converting between zettawatthour and therm [U.S.].
You can view more details on each measurement unit:
zettawatthour or therm [U.S.]
The SI derived unit for energy is the joule.
1 joule is equal to 2.7777777777778E-25 zettawatthour, or 9.4804342797335E-9 therm [U.S.].
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between zettawatthour and therm [U.S.].
Type in your own numbers in the form to convert the units!

## Quick conversion chart of zettawatthour to therm [U.S.]

1 zettawatthour to therm [U.S.] = 3.4129563407041E+16 therm [U.S.]

2 zettawatthour to therm [U.S.] = 6.8259126814081E+16 therm [U.S.]

3 zettawatthour to therm [U.S.] = 1.0238869022112E+17 therm [U.S.]

4 zettawatthour to therm [U.S.] = 1.3651825362816E+17 therm [U.S.]

5 zettawatthour to therm [U.S.] = 1.706478170352E+17 therm [U.S.]

6 zettawatthour to therm [U.S.] = 2.0477738044224E+17 therm [U.S.]

7 zettawatthour to therm [U.S.] = 2.3890694384928E+17 therm [U.S.]

8 zettawatthour to therm [U.S.] = 2.7303650725632E+17 therm [U.S.]

9 zettawatthour to therm [U.S.] = 3.0716607066336E+17 therm [U.S.]

10 zettawatthour to therm [U.S.] = 3.4129563407041E+17 therm [U.S.]

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You can do the reverse unit conversion from therm [U.S.] to zettawatthour, or enter any two units below:

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## Definition: Zettawatthour

The SI prefix "zetta" represents a factor of 1021, or in exponential notation, 1E21.

So 1 zettawatthour = 1021 .

## Definition: Therm

The therm (symbol thm) is a non-SI unit of heat energy. It was defined in the United States in 1968 as the energy equivalent of burning 100 cubic feet of natural gas at standard temperature and pressure. In the US gas industry its SI equivalent is defined as exactly 100,000 BTU59°F or 105.4804 megajoules. Public utilities in the U.S. use the therm unit for measuring customer usage of gas and calculating the monthly bills.

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