Boat & Marine Calculators
5 free calculators — all 50 states
Calculate the true cost of boat ownership including loans, insurance, marina fees, maintenance, fuel, and winterization.
All Calculators
Boat Depreciation Calculator
Calculate how much your boat will depreciate over time. See current and future resale value, annual depreciation rate, and cost per year of ownership.
Boat Fuel Cost Calculator
Calculate annual boat fuel costs based on engine size, hours, and fuel type. See gallons per hour, per-trip cost, and seasonal fuel budget.
Boat Insurance Cost Calculator
Estimate boat insurance costs based on boat value, type, experience, and waters. See annual premiums, coverage amounts, and per-trip cost.
Boat Loan Calculator
Calculate boat loan payments, total interest, and financing costs. See how down payment, term, and rate affect your marine loan.
Boat Ownership Cost Calculator
Calculate the real cost of owning a boat. See loan payments, insurance, marina fees, maintenance, fuel, and winterization costs broken down.
About Boat & Marine Calculators
Calculate the true cost of boat ownership including loans, insurance, marina fees, maintenance, fuel, and winterization. All 5 calculators are free to use, require no sign-up, and provide instant results based on verified data from official government agencies.
Each calculator includes a detailed methodology section explaining the formulas used, data sources cited with verification dates, and frequently asked questions to help you understand the results. Results are shareable and print-friendly.