How Many BTU in a kWh?

1 kilowatt-hour equals about

3.412 BTU

How to Convert kWh to BTU

The kilowatt-hour (kWh) is the standard electrical unit in Europe, while the BTU (British Thermal Unit) is the thermal unit used especially to indicate the power of air conditioners and heat pumps, particularly in American imports or international specifications.

The Conversion Formula

To convert a measurement from kWh to BTU, simply multiply the value by 3,412.14:

BTU = kWh × 3,412.14

To convert from BTU to kWh, perform the inverse operation, dividing by 3,412.14:

kWh = BTU ÷ 3,412.14

Practical Examples

  • 1 kWh ≈ 3,412 BTU
  • 2.5 kWh ≈ 8,530 BTU
  • 3.5 kWh ≈ 11,942 BTU (typical power of a 12,000 BTU/h air conditioner)
  • 5 kWh ≈ 17,060 BTU

When This Conversion Is Needed

This conversion is among the most searched in international markets for those choosing an air conditioner: the cooling power of these devices is traditionally expressed in BTU/h, but to compare it with electrical consumption (in kW) and estimate utility costs, a clear numerical reference between the two units is needed.

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