Boat & Marine Calculator

A collection of marine calculators for boat owners and marine enthusiasts

Fuel Consumption Calculator — Calculate fuel consumption rate and total fuel needed for your trip
Navigation Distance/Time Calculator — Calculate travel time and ETA based on speed and distance
Anchor Scope Calculator — Calculate anchor rode length based on depth and sea conditions
Engine Horsepower Recommender — Find the right HP range based on hull length and displacement
Trailer Weight Calculator — Calculate total trailer weight and tongue weight
Load Capacity Calculator — Calculate maximum passengers and weight limit for your boat
Bottom Paint Calculator — Calculate how much antifouling paint you need
Propeller Slip Calculator — Measure propulsion efficiency by comparing theoretical and actual speed
Battery Runtime Calculator — Estimate battery bank runtime based on capacity and electrical load
Capsize Screening Calculator — Calculate your boat's capsize screening formula for stability assessment
Hull Speed Calculator — Calculate the theoretical maximum hull speed for displacement, semi-displacement, and planing hulls