Calculators
Wetted-area calculator
Pick a boat from … measured hulls and see its underwater area three different ways, then turn whichever figure you trust into a tin count for your own antifouling.
Nothing picked yet.
m
m
m
m
kg
m
Average freeboard isn't part of the measured records — it is short for the height of the hull side above the waterline, averaged from bow to stern, and it is only needed for the topsides and total-area rows below. Type in your own boat's, or a rough guess, to see those two rows.
Underwater area — three estimates
Three different approximations, kept separate rather than averaged into one number.
Antifouling paint
Coverage and coats are your tin's own figures — read them off the tin rather than trusting the defaults below, which are typical figures, not yours.
m²/L
coats
L