Because the hull speed is related to the length of the boat and the wavelength of the wave it produces as it moves through water, there is another formula that arrives at the same values for hull speed based on the waterline length.
where
: is the length of the waterline in meters,
: is the hull speed of the vessel in meters per second, and
: is the acceleration due to gravity in meters per second squared.
This equation is the same as the equation used to calculate the speed of surface water waves in deep water.  It dramatically simplifies the units on the constant before the radical in the empirical equation, while giving a deeper understanding of the principles at play.