Therms to Watt Hours: 1 therm equals 29307.222 Wh. To convert therms to watt hours, multiply by 29307.222 (Wh = therm × 29,307.22). For example, 10 therm = 293072.22 Wh.
How to Convert Therms to Watt Hours
To convert from therms to watt hours, multiply the value by 29307.222. The conversion is linear, meaning doubling the input doubles the output.
Conversion Formula
- Therms to Watt Hours:
Wh = therm × 29,307.22 - Watt Hours to Therms:
therm = Wh ÷ 29,307.22
Therms to Watt Hours Conversion Chart
| Therms (therm) | Watt Hours (Wh) |
|---|---|
| 0.1 | 2930.7222 |
| 0.25 | 7326.8055 |
| 0.5 | 14653.611 |
| 1 | 29307.222 |
| 2 | 58614.444 |
| 3 | 87921.666 |
| 5 | 146536.11 |
| 10 | 293072.22 |
| 20 | 586144.44 |
| 25 | 732680.55 |
| 50 | 1465361.1 |
| 100 | 2930722.2 |
| 250 | 7326805.5 |
| 1000 | 29307222 |
Understanding the Units
What is a Therm?
A therm equals exactly 100,000 BTU, or about 105.5 megajoules — the standard unit for retail natural gas in the US and UK.
Common contexts: natural gas billing.
What is a Watt Hour?
A watt-hour equals exactly 3,600 joules.
Common contexts: phone batteries, small device energy.