BTU to Watt-hours converter

To convert BTU to watt-hours, enter the value in the first field. The result in watt-hours is calculated automatically using the exact conversion factor.

1 BTU ≈ 0.293071070172 Wh
1 Wh ≈ 3.41214163313 BTU

Formula: Wh ≈ BTU × 0.293071070172
BTU ≈ Wh × 3.41214163313

Definitions: 1 BTU = 1055.05585262 J; 1 Wh = 3600 J

The British thermal unit (BTU) here is the International Table BTU, about 1,055 joules, roughly the energy needed to raise one pound of water by one degree Fahrenheit. It is used in the United States for heating and cooling equipment, fuel content and natural gas.

The watt-hour (Wh) is the energy of one watt working for one hour, exactly 3,600 joules. It is used for the capacity of phone, laptop and power bank batteries and for small amounts of electricity.

See the conversion table with commonly used values, handy for quick reference or study.