Hull Speed Calculator
PROCalculate the theoretical hull speed for a displacement vessel from waterline length.
MCA Yachtmaster Ocean, MNZ Coxswain (restricted)
Offshore sailing instructor and maritime educator with 30 years of blue-water passages. Author of coastal navigation guides for NZ waters.
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About the Hull Speed Calculator
Hull speed is the theoretical maximum speed of a displacement vessel. Beyond hull speed, the boat must climb its own bow wave, requiring exponentially more power.
How it works
V_{\text{hull}} = 1.34 \times \sqrt{LWL_{\text{ft}}}