This page contains some useful conversion factors when dealing with Natural Gas and LNG.
It is interesting to compare LNG with oil to get a handle on some basic conversions. A barrel of oil when burnt contains approximately 5.8 x 106 BTU of energy.
|Natural Gas and LNG||billion m3 NG||billion ft3 NG||million tonnes OE||million tonnes LNG||trillion BTUs|
|1 billion m3 NG||1||35.30||0.900||0.740||35.70|
|1 billion ft3 NG||0.028||1||0.025||0.021||1.01|
|1 million tonnes OE||1.110||39.20||1||0.820||39.70|
|1 million tonnes LNG||1.360||48.00||1.220||1||48.60|
|1 trillion BTUs||0.028||0.99||0.025||0.021||1|
|Other useful conversions|
|1 metric tonne =||2204.6226 lb =||1.10231 short tons|
|1 kJ =||0.2301 kcal =||0.9478 BTU|
|1 BTU =||0.2522 kcal =||1.0551 kJ|
|1 kWh =||3600 kJ =||3412 BTU|
|1 barrel =||42 US Gal =||158.9873 L|
|1 Litre =||0.264172 US Gal =||0.219969 Imp Gal|
Source: Perry's Engineering Handbook, 8th edition.
NB: The conversion factors have been quoted to a large number of decimal places, as the quantities of gas traded / produced normally runs to millions of tonnes in any calculation.