Compare gas and diesel prices at 90+ US marinas. Find the cheapest fuel near you.
Help fellow boaters by reporting current fuel prices at marinas you visit.
Prices are estimates and may not reflect current rates. Report updated prices to help other boaters.
This tool helps boaters find marina fuel prices, compare costs across nearby locations, and estimate fuel expenses for upcoming trips. Whether you are planning a weekend cruise or budgeting for a full season on the water, understanding marina fuel pricing can save you hundreds of dollars a year.
Use the interactive map to browse marinas in your area. Each pin shows the marina's reported gas and diesel prices. Click a marina to see its full details including address, fuel types available, and last-reported price date. Use the fuel cost calculator to estimate your total fill-up cost by entering your tank size and the price per gallon. If you know current prices at a marina, report them to help fellow boaters stay informed.
Boat fuel at marinas typically runs $1 to $2 more per gallon than the same fuel at a roadside gas station. Several factors drive this premium: fuel must be delivered to waterfront locations by specialized tanker trucks or barges, which increases logistics costs. Marinas sell far less volume than highway gas stations, so they cannot negotiate the same bulk discounts. Environmental compliance for over-water fueling is expensive, requiring spill containment systems, fuel-water separators, and enhanced insurance. Finally, boaters pay a convenience premium for the ability to fuel up without trailering to a gas station.
Most small outboard-powered boats run on gasoline, while larger inboard cruisers, trawlers, and sailboat auxiliaries typically use diesel. Diesel engines offer better fuel efficiency and longer range, making them the standard choice for vessels over 30 feet. Diesel fuel at marinas is usually priced higher per gallon than gasoline but delivers more energy per gallon, partially offsetting the price difference. If your boat supports either fuel type, factor in both the per-gallon cost and your engine's consumption rate to compare true operating costs.
Slow down -- fuel consumption increases dramatically at higher speeds due to hull resistance. Running at displacement speed rather than planing speed can cut fuel use by 30-50%. Keep your hull clean, as marine growth creates drag and increases consumption. Plan routes to fuel up at the cheapest marina along your path rather than always using the closest one. Buy fuel midweek when possible, as weekend demand can push prices up at popular marinas. Consider ethanol-free fuel for better engine performance and fewer maintenance issues, even though it costs slightly more per gallon.
Ethanol-free (E0) fuel is recommended for marine engines, especially if your boat sits idle for extended periods. Ethanol absorbs moisture from the humid marine environment, which can cause phase separation, corrode aluminum fuel system components, and degrade fiberglass tanks. Modern outboards can handle E10, but E0 reduces maintenance issues and provides slightly better fuel economy.
Fuel consumption varies widely by boat type. A small fishing boat with a 90hp outboard uses about 7-9 gallons per hour at cruising speed. A 25-foot center console with twin 150hp engines burns 15-25 GPH. Pontoon boats are more efficient at 3-6 GPH. Large cabin cruisers can consume 20-50 or more GPH. Multiply your engine's GPH rating at cruising RPM by your expected hours on the water to estimate trip fuel needs.
If your boat is on a trailer, yes -- many boaters fuel up at roadside gas stations to save money. You will need portable fuel tanks or a long enough fuel hose to reach your boat's fill port. Be aware that gas station fuel is almost always E10 (contains 10% ethanol), while marinas often offer ethanol-free options. For boats kept in the water, marina fueling is your only practical option.
Multiply your engine's gallons-per-hour consumption rate by the number of hours you plan to run, then multiply by the price per gallon at your marina. Add a 15-20% buffer for current, wind, and unplanned detours. For example, a boat burning 10 GPH on a 4-hour trip at $5.50 per gallon would cost roughly $220, plus a buffer bringing the estimate to about $250-265.
Prices vary based on the marina's location, delivery logistics, volume purchased, competition from nearby marinas, and operating costs. Remote or island marinas pay more for fuel delivery and pass those costs to boaters. High-traffic marinas with strong volume can negotiate better wholesale rates. Marinas in areas with more competition tend to keep prices lower to attract customers.