British Thermal Unit

Published at 12:18PM - 11/01/15

A  British Thermal Unit or BTU, is a measurement of energy.  1 BTU is equal to the amount of energy needed to change the temperature of 1 imperial pound of water by 1 degree Fahrenheit.  

I BTU is equivalent to 1055 Joules.

With in the offshore gas production it is widely used to measure gas produce, with common conversions including:


  • 1 cubic foot (1ft3) of natural gas≈  1000BTU
  • Approximately 1000 cubic feet (1000ft3) of natural gas ≈ 1MMBTU≈  1 Giga Joule (1GJ)
  • Price conversion of natural gas – 1000 m3 ≈ 35.8 MMBTU and 1 MMBTU ≈ 27.9 m3