The US therm
The US therm equals exactly 100,000 BTU (IT), or 105,480,400 joules. It is the standard billing unit for residential natural-gas consumption in the United States.
US therms to Kilowatt-hours Converter
1 thm = 29.3001 kWh (US therm → kilowatt-hour)
1 thm = 29.3001 kWh
1 US therm equals 29.3001 kilowatt-hours. To convert US therms to kilowatt-hours, multiply the US therm value by 29.3001. For quick reference: 1 thm = 29.3001 kWh, 5 thm = 146.501 kWh, 10 thm = 293.001 kWh, 100 thm = 2930.01 kWh.
Formula
Kilowatt-hours = US therms × 29.3001Quick
How to convert US therms to kilowatt-hours
Take your value
Start with your value in US therms.
Multiply by 29.3001
Multiply the US therm value by 29.3001. This is the exact conversion factor from US therms to kilowatt-hours.
Read the result
The product is your value in kilowatt-hours. For example, 5 thm × 29.3001 = 146.501 kWh.
Conversion formula
The exact factor from US therms to kilowatt-hours is 29.3001.
Kilowatt-hours = US therms × 29.3001
US therms to Kilowatt-hours conversion table
Fifty common reference values, hand-picked for skim utility. Use the calculator above for any value not listed.
| US therms (thm) | Kilowatt-hours (kWh) |
|---|---|
| 0.001 thm | 0.0293 kWh |
| 0.01 thm | 0.293 kWh |
| 0.1 thm | 2.93 kWh |
| 0.5 thm | 14.65 kWh |
| 1 thm | 29.3 kWh |
| 1.5 thm | 43.95 kWh |
| 2 thm | 58.6 kWh |
| 5 thm | 146.5 kWh |
| 10 thm | 293 kWh |
| 20 thm | 586 kWh |
| 50 thm | 1465 kWh |
| 100 thm | 2930 kWh |
| 200 thm | 5860 kWh |
| 250 thm | 7325 kWh |
| 500 thm | 14650 kWh |
| 1000 thm | 29300 kWh |
| 2000 thm | 58600 kWh |
| 2500 thm | 73250 kWh |
| 3600 thm | 105480 kWh |
| 5000 thm | 146501 kWh |
| 7500 thm | 219751 kWh |
| 10000 thm | 293001 kWh |
| 25000 thm | 732503 kWh |
| 50000 thm | 1465006 kWh |
| 100000 thm | 2930011 kWh |
| 250000 thm | 7325028 kWh |
| 500000 thm | 14650056 kWh |
| 1000000 thm | 29300111 kWh |
| 2000000 thm | 58600222 kWh |
| 3600000 thm | 105480400 kWh |
| 5000000 thm | 146500556 kWh |
| 10000000 thm | 293001111 kWh |
| 25000000 thm | 732502778 kWh |
| 50000000 thm | 1465005556 kWh |
| 100000000 thm | 2930011111 kWh |
| 250000000 thm | 7325027778 kWh |
| 500000000 thm | 14650055556 kWh |
| 1000000000 thm | 29300111111 kWh |
| 2000000000 thm | 58600222222 kWh |
| 5000000000 thm | 146500555556 kWh |
| 10000000000 thm | 293001111111 kWh |
| 20000000000 thm | 586002222222 kWh |
| 50000000000 thm | 1465005555556 kWh |
| 100000000000 thm | 2930011111111 kWh |
| 1000000000000 thm | 29300111111111 kWh |
| 10000000000000 thm | 293001111111111 kWh |
| 100000000000000 thm | 2.9300 × 10^15 kWh |
| 1000000000000000 thm | 2.9300 × 10^16 kWh |
| 10000000000000000 thm | 2.9300 × 10^17 kWh |
| 100000000000000000 thm | 2.9300 × 10^18 kWh |
Real-world reference
A US household uses roughly 3–10 therms of natural gas per month in summer. A typical gas furnace might consume 1 therm per hour of runtime. In kilowatt-hours, that gives you: 1 thm = 29.3001 kWh, 10 thm = 293.001 kWh, 100 thm = 2930.01 kWh.
Frequently asked questions
- How many kilowatt-hours are in 1 US therm?
- 1 US therm equals 29.3001 kilowatt-hours.
- How do I convert US therms to kilowatt-hours?
- Multiply the US therm value by 29.3001. So x thm × 29.3001 = the equivalent in kWh.
- What is 5 US therms in kilowatt-hours?
- 5 US therms equals 146.501 kilowatt-hours.
- What is 10 US therms in kilowatt-hours?
- 10 US therms equals 293.001 kilowatt-hours.
- What is 100 US therms in kilowatt-hours?
- 100 US therms equals 2930.01 kilowatt-hours.
- How do I convert back from kilowatt-hours to US therms?
- Multiply the kilowatt-hour value by 0.0341296. For example, 1 kWh = 0.0341296 thm.
- Is the US therm bigger than the kilowatt-hour?
- Yes. 1 US therm is larger than 1 kilowatt-hour — specifically 29.3001 times larger.
- Are these conversion factors exact?
- The factor is derived directly from the SI definitions of US therm and kilowatt-hour; the displayed value is rounded for readability, and the browser computes using IEEE 754 double-precision arithmetic.
About the US therm and the kilowatt-hour
The kilowatt-hour
The kilowatt-hour (kWh) equals exactly 3,600,000 joules — the unit on every household electricity bill. One kWh runs a 1,000 W appliance for one hour.