LNG cargo calculator for mass, energy, quality, vapor pressure and fuel oil equivalent, based on ISO 6578:2017, ISO 6976:2016 and GPA Midstream 2145-16. Installable web app with a standalone HTML version for offline workstations.
calculator energy density vapor-pressure lng natural-gas maritime oil-and-gas conditioning molar-mass cargo-survey wobbe-index expansion-ratio iso-6578 iso-6976 gpa-2145 gas-volume boiling-point methane-number en-16726
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Updated
Oct 28, 2026 - HTML