kWh to BTU Converter

Convert kilowatt-hours to BTU. 1 kWh = 3,412 BTU.

Inputs

Result

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General calculation reads

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How to use this calculator

  • Enter kWh.
  • Read BTU and therms.

About this calculator

A modest US home uses ~30 kWh/day of electricity (~10,000 kWh/year), equal to about 34.1 million BTU. Heating with gas is typically priced per therm (100,000 BTU = 29.3 kWh equivalent). Direct kWh-to-BTU comparison is useful for cross-fuel cost analysis.

Frequently asked

How many therms in a typical winter heating bill?+
Cold-climate US home: 80-150 therms per heating month. Equivalent to 2,400-4,400 kWh.
kWh vs BTU for heating efficiency?+
Heat pump COP of 3.0 means 1 kWh in → 3 kWh of heat out → ~10,000 BTU. Resistance heat: 1 kWh = ~3,412 BTU exactly.
What does my AC nameplate say?+
Often both. A 24,000 BTU/hr unit consumes ~2,000 W (depending on EER), so you can compute its electrical cost easily.
Therms vs CCF gas?+
CCF (100 cubic feet) of natural gas is roughly 1 therm — gas company's convention varies slightly.
Why is the conversion factor 0.000293?+
1 kWh = 3.6 MJ; 1 BTU = 1055.06 J. So 1 kWh / 1055.06 J/BTU × 3.6e6 J/kWh ≈ 3412 BTU/kWh.

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Heating BTU/hr = ft² × insulation factor × ΔT.
kWh Cost Per Month
Cost = W × hr/day × 30 / 1000 × $/kWh.

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