How to convert kilowatt-hours to British thermal units
BTU = kWh × 3,412.141633Multiply the value in kilowatt-hours by 3,412.141633. To go the other way, multiply by 0.0002930710702 (or divide by 3,412.141633).
A kilowatt-hour is larger than a British thermal unit: one kilowatt-hour contains 3,412.141633 British thermal units.
Worked examples
- 1 kilowatt-hour1 kWh × 3,412.141633 = 3,412.141633 BTU
- 5 kilowatt-hours5 kWh × 3,412.141633 = 17,060.70817 BTU
- 10 kilowatt-hours10 kWh × 3,412.141633 = 34,121.41633 BTU
- 20 kilowatt-hours20 kWh × 3,412.141633 = 68,242.83266 BTU
- 100 kilowatt-hours100 kWh × 3,412.141633 = 341,214.1633 BTU
Kilowatt-hours to British thermal units conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Kilowatt-hours (kWh) | British thermal units (BTU) |
|---|---|
| 0.1 kWh | 341.21416 BTU |
| 0.25 kWh | 853.03541 BTU |
| 0.5 kWh | 1,706.0708 BTU |
| 1 kWh | 3,412.1416 BTU |
| 2 kWh | 6,824.2833 BTU |
| 3 kWh | 10,236.425 BTU |
| 4 kWh | 13,648.567 BTU |
| 5 kWh | 17,060.708 BTU |
| 6 kWh | 20,472.85 BTU |
| 7 kWh | 23,884.991 BTU |
| 8 kWh | 27,297.133 BTU |
| 9 kWh | 30,709.275 BTU |
| 10 kWh | 34,121.416 BTU |
| Kilowatt-hours (kWh) | British thermal units (BTU) |
|---|---|
| 12 kWh | 40,945.7 BTU |
| 15 kWh | 51,182.124 BTU |
| 20 kWh | 68,242.833 BTU |
| 25 kWh | 85,303.541 BTU |
| 30 kWh | 102,364.25 BTU |
| 40 kWh | 136,485.67 BTU |
| 50 kWh | 170,607.08 BTU |
| 75 kWh | 255,910.62 BTU |
| 100 kWh | 341,214.16 BTU |
| 250 kWh | 853,035.41 BTU |
| 500 kWh | 1,706,070.8 BTU |
| 1,000 kWh | 3,412,141.6 BTU |
About the units
Kilowatt-hour (kWh)
Exactly 3.6 MJ. The unit on electricity bills; running a 1,000 W heater for an hour uses 1 kWh. One kilowatt-hour equals 3,600,000 joules (J).
British thermal unit (BTU)
The International Table BTU, 1,055.05585262 J — roughly the energy to heat one pound of water by 1 °F. Furnace and AC capacities are rated in BTU (per hour). One British thermal unit equals 1,055.055853 joules (J).
Frequently asked questions
How many British thermal units are in one kilowatt-hour?
There are 3,412.141633 British thermal units in one kilowatt-hour, and this value is exact by definition.
How do I convert kilowatt-hours to British thermal units?
Multiply the number of kilowatt-hours by 3,412.141633. For example, 10 kWh × 3,412.141633 = 34,121.41633 BTU.
How many kilowatt-hours are in one British thermal unit?
One British thermal unit equals 0.0002930710702 kilowatt-hours. That is the reverse factor, 1 ÷ 3,412.141633.
What is 10 kilowatt-hours in British thermal units?
10 kWh = 34,121.41633 BTU.
Is this kWh to BTU converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.