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    Convert Kilowatt-hours to BTU

    1 kilowatt-hour (kWh) equals 3412.141633 British thermal units (BTU).

    kWh
    Swap: convert British thermal units to kilowatt-hours
    BTU

    1 kWh = 3412.141633 BTU

    Type in either box. Scientific notation works: 1.5e-3.

    Converting a list? Use the bulk kilowatt-hour to BTU converter to paste a column from Excel.

    How to Convert Kilowatt-hour to BTU

    • 1 kWh = 3412.141633 BTU
    • 1 BTU = 0.0002930710702 kWh
    • Example: convert 10 kWh to BTU: 10 kWh = 10 × 3412.141633 BTU = 34121.41633 BTU

    Reference conditions. BTU: International Table BTU (BTU_IT), 1055.05585262 J exactly.

    Formula

    BTU = kWh × 3412.141633128

    Derivation from SI units:

    • 1 kWh = 1000 W × 3600 s = 3.6 × 10⁶ J
    • 1 BTU_IT = 1055.05585262 J (exact)
    • 1 kWh = 3600000 J ÷ 1055.05585262 J per BTU = 3412.141633128 BTU

    Both units are defined exactly, so the factor is exact. Kilowatt-hour definition: kilowatt-hour; BTU definition: British thermal unit.

    Worked examples

    1. 1 kWh of electricity is 3412.141633 BTU.
      1 kWh × 3412.141633 = 3412.141633 BTU
    2. A home using 30 kWh a day consumes 102364.249 BTU.
      30 kWh × 3412.141633 = 102364.249 BTU

    Kilowatt-hour to BTU conversion table

    Kilowatt-hour to BTU conversion table
    Kilowatt-hours (kWh)BTU
    0.1 kWh341.2141633 BTU
    0.5 kWh1706.070817 BTU
    1 kWh3412.141633 BTU
    2 kWh6824.283266 BTU
    5 kWh17060.70817 BTU
    10 kWh34121.41633 BTU
    13.5 kWh46063.91205 BTU
    20 kWh68242.83266 BTU
    30 kWh102364.249 BTU
    50 kWh170607.0817 BTU
    75 kWh255910.6225 BTU
    100 kWh341214.1633 BTU
    300 kWh1023642.49 BTU
    900 kWh3070927.47 BTU
    1000 kWh3412141.633 BTU
    10000 kWh34121416.33 BTU

    Where it's used

    Comparing electric and fuel-fired heating requires converting kWh to BTU. 1 kWh is about 3412 BTU.

    Kilowatt-hour to other energy units

    1 kWh expressed in every energy unit
    Conversion1 kWh equals
    kilowatt-hour to joule 3600000 J
    kilowatt-hour to kilojoule 3600 kJ
    kilowatt-hour to megajoule 3.6 MJ
    kilowatt-hour to calorie 860420.6501 cal
    kilowatt-hour to kilocalorie 860.4206501 kcal
    kilowatt-hour to watt-hour 1000 Wh
    kilowatt-hour to BTU 3412.141633 BTU
    kilowatt-hour to therm 0.03412956341 thm
    kilowatt-hour to electronvolt 2.246943267 × 10²⁵ eV
    kilowatt-hour to foot-pound 2655223.737 ft·lbf
    kilowatt-hour to erg 36000000000000 erg

    Frequently asked questions

    How many BTU is 1 kWh?

    1 kWh = 3412.141633 BTU.

    How many British thermal units are in 1 kilowatt-hour?

    1 kWh = 3412.141633 BTU.

    How do I convert kilowatt-hours to British thermal units?

    Multiply the value in kWh by 3412.141633. For example, 10 kWh × 3412.141633 = 34121.41633 BTU.

    Is the kWh to BTU 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

    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 Kilowatt-hours to BTU. Retrieved October 17, 2026, from https://scientificconverters.com/energy/kilowatt-hours-to-btu/

    IEEE

    Scientific Converters, "Convert Kilowatt-hours to BTU," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/energy/kilowatt-hours-to-btu/