Ship Universe Maritime Tool

Bunker ROB, Range & Endurance Calculator

Estimate safe steaming endurance, maximum range, voyage fuel requirement, arrival ROB and minimum bunker uplift. Use Simple mode for one combined fuel pool or Advanced mode to track VLSFO and MGO separately.

Fuel units Metric tonnes (MT)

Current Fuel Position

Enter current ROB, expected consumption and the reserve you want protected.

MT
MT/day
knots
% ROB

Planned Voyage

Distance is optional for range-only calculations. Port allowance is included before arrival ROB is tested.

nm
%
days
MT/day

Voyage & Margin

Track the two fuel grades separately so the limiting grade controls safe endurance and range.

nm
knots
%
%
days

VLSFO Position

Enter ROB, planned bunker uplift, reserve requirement and consumption by operating mode.

MT
MT
MT/day
MT/day
MT

MGO / Distillate Position

Use zero consumption if this grade is not required during the modeled period.

MT
MT
MT/day
MT/day
MT

Fuel Position Results

Simple combined-fuel estimate

Enter ROB data
Enter current ROB, consumption and speed to calculate safe endurance, maximum steaming range and voyage fuel position.
Planning estimate only. Actual fuel consumption and required reserves can differ because of weather, current, draft, trim, hull condition, machinery condition, fuel changeover, auxiliary loads, route deviations, congestion, waiting time, ECA requirements, charterparty instructions, company policy and statutory or safety requirements. Confirm bunker planning with vessel-specific operating data and applicable procedures before voyage execution.
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