Convert kilowatt-hours to British thermal units
Enter a value in kilowatt-hours (kWh) to get British thermal units (BTU). One kilowatt-hour is 3,412.14 British thermal units; one British thermal unit is 0.00029307 kilowatt-hours.
How to use the Kilowatt-hour to British thermal unit
- Type the number of kilowatt-hours.
- Click Convert.
- Read the result in British thermal units, plus the same value in every other energy unit.
kWh to BTU formula
British thermal units = kilowatt-hours × 3,412.14. To go the other way, kilowatt-hours = British thermal units × 0.00029307 (see British thermal units to kilowatt-hours).
Worked example
12 kWh × 3,412.14 = 40,945.7 BTU.
Kilowatt-hours to British thermal units conversion table
| Kilowatt-hours | British thermal units |
|---|---|
| 0.1 kWh | 341.2142 BTU |
| 0.5 kWh | 1,706.07 BTU |
| 1 kWh | 3,412.14 BTU |
| 2 kWh | 6,824.28 BTU |
| 3 kWh | 10,236.42 BTU |
| 5 kWh | 17,060.71 BTU |
| 10 kWh | 34,121.42 BTU |
| 20 kWh | 68,242.83 BTU |
| 25 kWh | 85,303.54 BTU |
| 50 kWh | 170,607.08 BTU |
| 100 kWh | 341,214.16 BTU |
| 250 kWh | 853,035.41 BTU |
| 500 kWh | 1,706,070.82 BTU |
| 1,000 kWh | 3,412,141.63 BTU |
About the kilowatt-hour
The electricity billing unit: 1,000 W for one hour. Also EV battery capacity.
About the British thermal unit
Heating and air-conditioning capacity in the USA and UK.
Related conversions
British thermal units to kilowatt-hours · kilowatt-hours to kilojoules · kilowatt-hours to megajoules · any unit.
Frequently asked questions
How many British thermal units in a kilowatt-hour?
3,412.14 British thermal units.
How many kilowatt-hours in a British thermal unit?
0.00029307 kilowatt-hours.
Is the factor exact?
The factor 3,412.14 is derived from the units' exact definitions; only the display is rounded.
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Last updated 2026-09-23.