Convert therms to Wh
therms to watt hours. Enter a value to convert, or use the therms to Wh chart further down the page.
1 therm equals 29,307.1 watt hours. Going the other way, 1 watt hour = 0.0000341214 therms.
How to convert therms to Wh
To convert therms to watt hours, multiply the therm value by 29307.10702. You can also divide by 0.00003412141633 to get the same answer.
Wh = thm × 29307.10702
Worked example
Convert 15 thm to watt hours:
15 thm = 439,607 Wh
therms to Wh conversion chart
Use this therms to Wh table for quick reference without typing anything.
| therms (thm) | watt hours (Wh) |
|---|---|
| 0.01 thm | 293.071 Wh |
| 0.1 thm | 2,930.71 Wh |
| 1 thm | 29,307.1 Wh |
| 2 thm | 58,614.2 Wh |
| 3 thm | 87,921.3 Wh |
| 5 thm | 146,536 Wh |
| 10 thm | 293,071 Wh |
| 20 thm | 586,142 Wh |
| 50 thm | 1,465,360 Wh |
| 100 thm | 2,930,710 Wh |
| 1,000 thm | 29,307,100 Wh |
What is a therm?
The therm (thm) is a unit of energy equal to 105505585.3 joules.
What is a watt hour?
A watt hour is exactly 3,600 joules — the energy used by a one-watt device in one hour. Battery capacity is rated in watt hours.
Frequently asked questions
How many Wh are in a therm?
1 therms equals 29,307.1 Wh. Going the other way, 1 Wh is 0.0000341214 therms.
How do you convert therms to Wh?
To convert therms to watt hours, multiply the therm value by 29307.10702. You can also divide by 0.00003412141633 to get the same answer.
What is 10 therms in Wh?
10 therms equals 293,071 Wh. The conversion chart on this page lists the other values people look up most often.
Related energy conversions
Convert therms to other units
Convert other units to Wh
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