Displacement-Length Ratio


Displacement-Length Ratio

The displacement-length ratio (DLR) is a calculation used to express how heavy a boat is relative to its waterline length.

A DLR is calculated by dividing a boat's displacement in long tons (2,240 pounds) by one one-hundredth of the waterline length (in feet) cubed:

:mathit{DLR} = frac{mathit{displacement}(mathrm{lb}) ~/~ 2240} {(0.01 imes mathit{LWL}(mathrm{ft}))^3}.

The DLR can be used to compare the relative heaviness of various boats no matter what their size.


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