WORLD LNG CENTER
CARGO PLANNER

Make the assumptions visible.

An illustrative calculator for early LNG conversations. All inputs are editable; no live commercial data is used.

Your scenario

Choose a consistent heating-value basis for the energy input. Defaults are illustrative assumptions, not a cargo specification.

ILLUSTRATIVE RESULTS
Loaded LNG mass78,300 tonnes
Loaded energy content4,071,600 MMBtu
Cargo equivalents per year12.77

At least 13 theoretical loads, rounding up.

Cargo equivalents are not a vessel-fleet requirement or a shipping schedule.

Every formula, explained.

MassLoaded LNG volume × LNG density
EnergyLoaded mass × energy content per tonne
Annual cargo equivalentsAnnual volume × 1,000,000 ÷ loaded mass

Where this simple model stops

Results exclude boil-off, retained heel, filling limits, weather, voyage duration, port time, availability, losses, quality changes, costs and emissions. Inputs should represent actual loaded volume, not nominal ship capacity. Fractional cargoes are mathematical equivalents; rounding up alone is not a delivery plan.

Density and heating value vary with composition and conditions. Use certified cargo specifications for any commercial calculation.

Default scenario: 174,000 m³ at 0.45 tonnes/m³, 52 MMBtu/tonne and 1 million tonnes/year.