Marine Propulsion Calculator

Calculate propeller performance, ship speed, and propulsion system efficiency.

Inputs

Marine Propulsion Formulas:
Ship Speed = (Propeller RPM × Pitch) / (60 × 1852)
Thrust = Propeller Efficiency × Power / Ship Speed
Cavitation Number = (P_atm + ρgh - Pv) / (0.5ρV²)
Propeller Loading = Thrust / Propeller Disk Area
Typical range: 50-75% for marine propellers

Results

Enter propulsion parameters to calculate ship performance.

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