Free tools

Bunker and voyage calculators

Practical calculators for superintendents, operators and owners. Free to use, no sign-up. Results are estimates for planning.

Distance in nautical miles between 37 major bunkering ports, with sailing time and a route map.

How much fuel a voyage needs and how much to bunker, after sea margin and remaining on board.

How slowing down or speeding up changes daily consumption, voyage time and voyage fuel.

CO2 from the fuel you burn and the EU ETS allowances to surrender, by voyage type and year.

Convert fuel between tonnes, cubic metres and barrels with density and temperature, and convert prices.

Buy bunkers like a large fleet

Atlas Bunkering pools stems across fleets and passes on the rate we secure. The supplier invoices you directly.