Therms to kWh Converter
Convert US therms (thm) to kilowatt-hours (kWh) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
Therms to kWh formula
kWh = thm × 29.3001111
1 US therm = 29.3 kilowatt-hours · 1 kilowatt-hour = 0.0341 US therms
To convert US therms to kilowatt-hours, multiply the value by 29.3001111. For example, 50 thm:
kWh = 50 × 29.3001111kWh = 1465.005556
So 50 thm = 1465.01 kWh.
Mental math shortcut
Quick mental estimate: multiply by 29.3. For 50 thm that gives about 1465 kWh — within 1% of the exact answer. Use the exact formula when precision matters.
Therms to kWh conversion table
kWh back to Therms
The same values converted the other way, rounded for everyday use:
| Kilowatt-hours | US therms |
|---|---|
| 29.3 kWh | 1 thm |
| 146.5 kWh | 5 thm |
| 293 kWh | 10 thm |
| 586 kWh | 20 thm |
| 1465.01 kWh | 50 thm |
| 2930.01 kWh | 100 thm |
| 14650.06 kWh | 500 thm |
| 29300.11 kWh | 1000 thm |
About the units
US therms (thm)
A US therm is 100,000 BTU (about 29.3 kWh). Natural gas bills in the US are often charged per therm.
Kilowatt-hours (kWh)
A kilowatt-hour is 1,000 watts used for one hour (3.6 million joules). Electricity is billed per kWh.
Frequently asked questions
How many kilowatt-hours are in a US therm?
One US therm equals 29.3 kilowatt-hours.
What is 50 Therms in kWh?
50 thm = 1465.01 kWh.
How do I convert kWh back to Therms?
Divide the kilowatt-hours by 29.3001111.