Tokyo Gas Co., Ltd. Appendix Unit conversion bbl Barrel 1 bbl = 159 cf Cubic foot 1 cf = 0.0283 m3 MJ Megajoule 1 MJ = 106J = 238.889 kcal Btu British thermal unit 1 Btu = 1.054 kJ = 0.252 kcal MMBtu = 1 million Btu = 100 Btu = 1,054 MJ = 252,000 kcal ≈ 25 m3 of natural gas 25m3 LNG (LIQUEFIED NATURAL GAS) Volume conversion 1 ton ≈ 1,220 m3 of natural gas 1 1,220m3 1 million ton ≈ 1.22 billion m3
