Hull Speed Chart

Displacement hull speed is an important indicator of how fast a displacement-type boat will go.  It is the speed at which a boat begins to climb it's own bow wave, essentially going uphill.  It is calculated by the formula: velocity in knots=1.35 x √waterline length.  I got tired of looking around for my calculator, so I made up this handy chart.  Since I usually think in terms of statute mph, I included that too.  I also included kilometers per hour.  (Note that this hull speed formula does not apply to needle-like hulls such as racing shells).