Ship Universe Maritime Tool

Propeller Polishing ROI & Fuel Savings Calculator

Estimate propeller polishing fuel savings, payback and ROI for a ship or vessel. Model current propulsion fuel burn, expected fuel reduction, bunker price, sea days, polishing cost, off-hire, CO2 avoided and the break-even point for polishing the propeller.

Propeller Efficiency
Estimate fuel recovered by reducing propeller roughness and performance loss
Payback
Days at sea and months required for modeled fuel savings to recover project cost
ROI
Compare fuel and carbon-value savings with polishing, inspection and downtime cost

Fuel & Operating Profile

Use the portion of daily fuel burn that is materially affected by propeller condition, normally propulsion fuel at sea.

MT/day
days
%
Apply only the fuel reduction you reasonably expect from propeller polishing.
$ /MT
months
tCO2/MT

Propeller Polishing Cost

Include service cost, mobilization, inspection and any commercial downtime caused by the work.

$
$
days
$ /day

Propeller Condition & Performance

Advanced mode derives a clean-reference burn from the current estimated propeller penalty and models performance loss gradually returning after polishing.

MT/day
days
%
Estimated fuel penalty relative to a clean, smooth propeller at the same operating condition.
%
%
Used to model gradual roughness and efficiency loss returning after polishing.
months
%

Fuel & Carbon Value

$ /MT
%/year
tCO2/MT
$ /tCO2
%

Polishing Project Cost

$
$
$
$
days
$ /day
%

Propeller Polishing Results

Simple propeller polishing ROI estimate

Enter vessel data
Enter propulsion fuel burn, sea days, expected fuel reduction, bunker price and polishing cost to calculate propeller polishing payback and fuel savings.
Planning estimate only. Actual propeller-polishing savings depend on propeller material and condition, surface roughness, blade damage, marine growth, hull condition, vessel speed and draft, weather, trim, engine loading, shaft-line condition, cleaning quality and measurement method. Confirm that the polishing method is suitable for the propeller and permitted at the intended location. Use verified vessel-performance data when available. This calculator does not replace class, OEM, diving or environmental guidance.
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