tagged british thermal units, btu, kw, kwh

How to Convert Between kWh and BTU

common BTU energy sources

common BTU energy sources

We’ve already discussed the difference between kW and kWh in a previous post: kW being kiloWatt – a measure of power; kWh being kiloWatt-hour – a measure of energy.

British Thermal Units (BTU)

A BTU can be approximated as the heat produced by burning a single wooden kitchen match or as the amount of energy it takes to lift a one-pound weight 778 feet (237 m).

One BTU is approximately:

  • 1.054 to 1.060 kJ (kilojoules)
  • 0.293071 W·h (watt hours)
  • 0.000393081 hp

One Watt is approximately:

  • 3.41214 BTU/h

Now the question is how to convert between British Thermal Units (BTU) and kW.

Conversion Formulas for BTU/h to kWh

Using this information, we can understand the following formulas:

Watt-hour = BTU/hour * 0.29307107
BTU/hour = Watt-hour/0.2930717

btu defined

Hope this helps!



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