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Convert British Thermal Unit (BTU) to Joule (J) instantly with live mathematical scaling and high-precision energy tables.

British Thermal Unit (BTU): A traditional unit of heat, defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit.
Joule (J): The SI unit of energy, representing the energy expended when a force of one newton acts over a distance of one meter.