Convert energy units — joules, kilowatt-hours, calories, BTU, electron volts and more.
| Unit | Name | Value |
|---|---|---|
| 0.001 therm | 0.0293001 kWh | |
| 0.01 therm | 0.293001 kWh | |
| 0.1 therm | 2.93001 kWh | |
| 1 therm | 29.3001 kWh | |
| 5 therm | 146.501 kWh | |
| 10 therm | 293.001 kWh | |
| 50 therm | 1465.01 kWh | |
| 100 therm | 2930.01 kWh | |
| 1000 therm | 29300.1 kWh |
Formula: Kilowatt-Hour = Therm × 29.3
Multiply any therm value by 29.3 to get kilowatt-hour.
Reverse: Therm = Kilowatt-Hour × 0.03413
Common therm values — factor: 1 therm = 29.3 kWh
| Therm (therm) | Kilowatt-Hour (kWh) | Context |
|---|---|---|
| 0.001 therm | 0.0293 kWh | 0.1 kWh |
| 0.01 therm | 0.293 kWh | 1 kWh |
| 0.1 therm | 2.93 kWh | 3 kWh |
| 1 therm | 29.3 kWh | 29.3 kWh |
| 10 therm | 293 kWh | Monthly gas fraction |
| 50 therm | 1,465 kWh | Half winter month |
| 100 therm | 2,930 kWh | Monthly winter gas |
| 500 therm | 1.465e+04 kWh | Seasonal heating |
| 1,000 therm | 2.93e+04 kWh | Annual home gas |
| 1e+04 therm | 2.93e+05 kWh | Commercial building |
| 1e+05 therm | 2.93e+06 kWh | Large industrial |
| 1e+06 therm | 2.93e+07 kWh | Utility scale |
| 1.000e+09 therm | 2.930e+10 kWh | Regional supply |
| 1.000e+12 therm | 2.930e+13 kWh | National supply |
| 1.000e+15 therm | 2.930e+16 kWh | Global scale |
therm × 29.307 = kWh. Round to × 29.3.
One therm of gas = about 29.3 kWh of energy.
kWh ÷ 29.307 = therms.
Bills residential and commercial customers in therms per billing cycle.
Calculates annual gas consumption for boilers and furnaces in therms.
Trades natural gas contracts denominated in therms or MMBTU.
Monitors and benchmarks gas use in therms per square foot per year.
Sizes gas pipes and appliances based on BTU/hour and therm ratings.
Models household and industrial gas demand in therms per year.
The therm is a unit of natural gas energy equal to 100,000 BTU (105,480,400 joules). It is the standard billing unit for natural gas in the United States and United Kingdom. The name comes from the Greek thermos (heat).
Gas utilities bill residential and commercial customers in therms in the US and UK. A typical US household uses about 50–100 therms per month in winter. Natural gas furnaces and water heaters are rated in therms per hour.
Interesting fact: One therm of natural gas costs about $1.00–$2.00 in the US. Burning one therm releases about 5.3 kg of CO₂. The US consumes about 28 trillion therms of natural gas equivalent energy per year.
The kilowatt-hour (kWh) is the commercial unit of electrical energy, equal to the energy consumed by a 1,000-watt appliance in one hour (3,600,000 joules). It became standard with the growth of the electrical grid in the late 19th century.
Electricity bills worldwide are denominated in kWh. A typical household uses 300–1,000 kWh per month. An electric car uses about 15–25 kWh per 100 km. Solar panels generate 250–400 kWh per year per panel.
Interesting fact: The average price of electricity in the US is about $0.12 per kWh. One kWh can run a 100W light bulb for 10 hours, charge a smartphone about 100 times, or power a laptop for 2-3 days.
Converting therm to kilowatt-hour is common across energy, nutrition, engineering, and science. Different sectors use different energy units — joules in physics, kcal in nutrition, kWh in electricity, and BTU in HVAC — making accurate conversion essential for cross-disciplinary work and international comparisons.
Quick reference: 5 therm = 146.5 kWh and 10 therm = 293 kWh. Reverse: 1 kWh = 0.03413 therm. Exact factor: 1 therm = 29.3 kWh.
All conversions use IEEE 754 double-precision arithmetic, accurate to at least 8 significant figures.