9+ Boat Propeller Calculator. Find the best size propeller for your vessel using these free online tools. Determine the best propeller dimensions based on boat type, engine power, and usage.

16.1 x 11.4 3 blades s5 s7 16.9 x 11.5 2 blades s4 s6 31 horse power needed to reach 9.2 knots 27 shaft horse power available 8.3 knots max hull speed 1364 shaft rpm 40% prop. Enter the pitch of your current propeller. Find the ideal propeller for your boat using prop wizard, which compares sizes, pitches, and materials online.








