Small Sailboat
Waterline Length (feet): 25 ft
Hull Speed (knots): 6.7 knots
Hull Speed Calculator
Other0.0(0)
Calculates the theoretical maximum speed of a displacement hull boat based on its waterline length.
How To Use
How to use this calculator
Start with your values, or try a preset.
Step 1
Enter Waterline Length (feet) in the units shown.
Step 2
Read Hull Speed (knots) in the results panel. Results update as you change the inputs.
Step 3
Choose a preset to load an example, then adjust the values for your situation.
Worked Examples
Example calculations
See the inputs and their calculated results.
Medium Powerboat
Waterline Length (feet): 35 ft
Hull Speed (knots): 7.927546909 knots
Large Sailboat
Waterline Length (feet): 45 ft
Hull Speed (knots): 8.98899327 knots
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