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BTU to kWh Calculator: BTU to Kilowatt-Hours

Convert BTU to kilowatt-hours (and back), plus therms and MMBtu. These are all units of energy: 1 kWh equals 3,412 BTU. Handy for comparing gas and electric energy use, or sizing how much electricity it takes to replace a fuel. Rating an AC or heat pump in BTU/hr? That's power: use the BTU to kW converter instead.

Energy units: 1 kWh = 3,412 BTU · 1 therm = 100,000 BTU · 1 MMBtu = 1 million BTU. (For heating/cooling power, use the BTU to kW converter.)

Kilowatt-hours

2.931 kWh

BTU
10,000
Kilowatt-hours
2.931 kWh
Therms
0.1
MMBtu
0.01

Frequently asked questions

Divide BTU by 3,412.14. One kilowatt-hour of energy equals 3,412 BTU, so 10,000 BTU ÷ 3,412 ≈ 2.93 kWh. To go from kWh back to BTU, multiply by 3,412.

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WattSimple. (2026, July 19). BTU to kWh Calculator: BTU to Kilowatt-Hours. https://wattsimple.com/convert/btu-to-kwh

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"BTU to kWh Calculator: BTU to Kilowatt-Hours." WattSimple, 19 July 2026, https://wattsimple.com/convert/btu-to-kwh.

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Sources & standards

This tool's methodology and data follow US standards and authoritative public datasets: