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Convert British Thermal Unit (BTU) to Foot-pound (ft-lb) 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.
Foot-pound (ft-lb): An imperial unit of work or energy, defined as the energy required to raise a mass of one pound by one foot against gravity.