Ship Universe Maritime Tool
Ship Speed vs Fuel Cost Optimizer
Compare the cost of sailing faster or slower and estimate the economic speed that best balances bunker consumption against the value of voyage time.
Voyage & Vessel
Use a known daily fuel burn at a reference speed. The optimizer tests speeds across your permitted range.
nm
kn
MT/day
$/ MT
$/ day
Use TC hire, opportunity cost, or another daily value of time.3.0 is a common planning approximation. Actual vessel curves differ.
kn
kn
Voyage Constraints
Set the speed envelope and optionally impose a maximum sailing time. The optimizer will respect that deadline.
nm
kn
kn
kn
days
Useful when arrival timing sets a minimum required speed.kn
Fuel Model
Separate propulsion fuel from constant sea load for a more realistic speed curve.
MT/day
MT/day
Higher values make fuel burn rise more sharply with speed.
%
%
Economic Inputs
Time value is what makes faster sailing economically worthwhile. Carbon/regulatory cost can be layered onto each tonne of fuel.
$/ MT
$/ day
$/ MT
Optional economic adder. Enter the cost you want associated with each tonne burned.Optimization Results
Simple speed model
Enter voyage data
Enter the required voyage and fuel assumptions to compare speeds and estimate the lowest-cost economic speed.
Planning estimate only. This optimizer is not a voyage planning, navigation, charterparty, engineering or safety system. It does not determine safe speed, engine limits, weather routing, arrival obligations, CII compliance or contractual performance. Confirm all operational decisions using vessel-specific performance data and applicable commercial and technical requirements.
Done