Convert BTU to Kilowatt-hours
1 British thermal unit (BTU) equals 0.0002930710702 kilowatt-hours (kWh).
1 BTU = 0.0002930710702 kWh
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk BTU to kilowatt-hour converter to paste a column from Excel.
How to Convert BTU to Kilowatt-hour
- 1 BTU = 0.0002930710702 kWh
- 1 kWh = 3412.141633 BTU
- Example: convert 10000 BTU to kWh: 10000 BTU = 10000 × 0.0002930710702 kWh = 2.930710702 kWh
Reference conditions. BTU: International Table BTU (BTU_IT), 1055.05585262 J exactly.
Formula
kWh = BTU × 0.0002930710701722
or kWh = BTU ÷ 3412.141633128
Derivation from SI units:
- 1 BTU_IT = 1055.05585262 J (exact)
- 1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J
- 1 BTU = 1055.05585262 J ÷ 3600000 J per kWh = 0.0002930710701722 kWh
Both units are defined exactly, so the factor is exact. BTU definition: British thermal unit; Kilowatt-hour definition: kilowatt-hour.
Worked examples
- One therm of gas, 100000 BTU, is 29.30710702 kWh.
100000 BTU × 0.0002930710702 = 29.30710702 kWh - 3412 BTU is almost exactly 0.9999584914 kWh.
3412 BTU × 0.0002930710702 = 0.9999584914 kWh
BTU to Kilowatt-hour conversion table
| BTU | Kilowatt-hours (kWh) |
|---|---|
| 1 BTU | 0.0002930710702 kWh |
| 100 BTU | 0.02930710702 kWh |
| 1000 BTU | 0.2930710702 kWh |
| 3412 BTU | 0.9999584914 kWh |
| 5000 BTU | 1.465355351 kWh |
| 10000 BTU | 2.930710702 kWh |
| 12000 BTU | 3.516852842 kWh |
| 24000 BTU | 7.033705684 kWh |
| 50000 BTU | 14.65355351 kWh |
| 100000 BTU | 29.30710702 kWh |
| 1000000 BTU | 293.0710702 kWh |
Where it's used
Gas, oil and propane energy in BTU is converted to kWh to compare running costs with electricity and heat pumps.
BTU to other energy units
| Conversion | 1 BTU equals |
|---|---|
| BTU to joule | 1055.055853 J |
| BTU to kilojoule | 1.055055853 kJ |
| BTU to megajoule | 0.001055055853 MJ |
| BTU to calorie | 252.1644007 cal |
| BTU to kilocalorie | 0.2521644007 kcal |
| BTU to watt-hour | 0.2930710702 Wh |
| BTU to kilowatt-hour | 0.0002930710702 kWh |
| BTU to therm | 0.00001000238767 thm |
| BTU to electronvolt | 6.585140678 × 10²¹ eV |
| BTU to foot-pound | 778.1692623 ft·lbf |
| BTU to erg | 10550558530 erg |
Frequently asked questions
How do I convert BTU to kWh?
Divide by about 3412.14: 50 000 BTU = 14.65 kWh.
How many kilowatt-hours are in 1 British thermal unit?
1 BTU = 0.0002930710702 kWh.
How do I convert British thermal units to kilowatt-hours?
Multiply the value in BTU by 0.0002930710702, or divide it by 3412.141633. For example, 10000 BTU × 0.0002930710702 = 2.930710702 kWh.
Is the BTU to kWh conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "British thermal unit_IT (Btu_IT)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "kilowatt hour (kW·h)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert BTU to Kilowatt-hours. Retrieved October 17, 2026, from https://scientificconverters.com/energy/btu-to-kilowatt-hours/
IEEE
Scientific Converters, "Convert BTU to Kilowatt-hours," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/btu-to-kilowatt-hours/