As energy (E) is defined via work, the SI unit of energy is the same as the unit of work the joule (J).
A joule (Symbol: J) is a unit of energy, plural: joules.
A British thermal (BTU) is a unit of energy, one BTU is about 1055 joules.
Multiply the British thermal unit value by Infinity
joule = British thermal unit x Infinity
Divide the joule value by Infinity
British thermal unit = joule / Infinity
One joule (J) is equal to 0.000000 British thermal unit (BTU)
1 joule (J) = 0.000000 British thermal unit (BTU)
One British thermal unit (BTU) is equal to Infinity joule (J)
1 British thermal unit (BTU) = Infinity joule (J)