Free tools
CO2 and EU ETS calculator
Estimate the CO2 from the fuel you burn and the EU allowances (EUAs) to surrender under the EU Emissions Trading System.
Fuel consumed (mt)
CO2 only, using the EU MRV tank-to-wake emission factors: HFO 3.114, LFO 3.151, MGO/MDO 3.206 and LNG 2.750 t CO2 per t fuel. From 2026 the EU ETS also covers methane and nitrous oxide, which this estimate does not include, so LNG figures in particular are understated. The EU ETS applies to ships of 5,000 GT and above. Your verified MRV report is what counts.
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 →Bunker unit converter
Convert fuel between tonnes, cubic metres and barrels with density and temperature, and convert prices.
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.