Free tools
Bunker unit converter
Convert fuel quantities between metric tonnes, cubic metres and barrels, corrected for density and temperature, and convert prices between units.
Quantity
Price
Volume correction follows the ASTM D1250 method for fuel oils (Table 54B form). Mass is weight in air, using density at 15°C minus 1.1 kg/m³. The Bunker Delivery Note and the official tables used by the surveyor prevail.
Estimates for planning only. Always confirm figures with your technical team, voyage instructions and the Bunker Delivery Note.
Free tools
Bunker and voyage calculators
Sea distance calculator
Distance in nautical miles between 37 major bunkering ports, with sailing time and a route map.
Open calculator →Voyage bunker calculator
How much fuel a voyage needs and how much to bunker, after sea margin and remaining on board.
Open calculator →Speed and consumption calculator
How slowing down or speeding up changes daily consumption, voyage time and voyage fuel.
Open calculator →CO2 and EU ETS calculator
CO2 from the fuel you burn and the EU ETS allowances to surrender, by voyage type and year.
Open calculator →Buy bunkers like a large fleet
Atlas Bunkering pools stems across fleets and passes on the rate we secure. The supplier invoices you directly.