Yacht Fuel Cost Calculator
Fuel is one of the most variable yacht operating costs. Calculate precise fuel expenses for individual cruises, plan multi-stop trips, or estimate your annual fuel budget based on usage patterns.
Cruising Fuel Cost
Calculate the fuel cost for a specific cruise based on distance, speed, and engine specifications.
Trip Fuel Planner
Plan fuel costs for a multi-day trip including cruising, generator usage at anchor, and maneuvering.
Annual Fuel Budget
Estimate your total annual fuel expenditure based on typical usage patterns and yacht specifications.
How We Calculate Yacht Fuel Costs
Total Gallons = Cruising Hours × Engine Burn Rate + Anchor Hours × Generator Burn Rate
Cost Per Nautical Mile = Burn Rate × Fuel Price / Speed
Fuel consumption increases exponentially with speed (roughly ∝ speed³ for displacement hulls)
Frequently Asked Questions
How much fuel does a yacht burn per hour?
How can I reduce yacht fuel costs?
Where is marine fuel cheapest and most expensive?
Understanding Yacht Fuel Consumption
Fuel is one of the most significant variable costs of yacht ownership, and one that can be dramatically influenced by operating decisions. Unlike fixed costs such as insurance and marina fees, fuel expenditure is directly tied to how the yacht is used, making it both a major expense and an area where informed choices can yield substantial savings. Understanding the physics of fuel consumption and the factors that influence it enables yacht owners and captains to optimize their cruising budgets.
The Speed-Fuel Relationship
The relationship between speed and fuel consumption is not linear; it is exponential. For displacement hulls, fuel consumption increases roughly with the cube of speed. This means that doubling your speed from 8 to 16 knots will approximately multiply fuel consumption by eight times, not twice. This physical reality explains why experienced captains operate at 70-80% of maximum hull speed for optimal fuel efficiency. For planing hulls, the relationship is different: there is a dramatic fuel consumption peak during the transition from displacement to planing mode, after which efficiency improves somewhat at higher speeds.
Generator and Hotel Load Fuel
Often overlooked, generator fuel consumption represents 25-40% of total fuel expenditure for many yachts. Generators run continuously to power air conditioning, lighting, galley equipment, entertainment systems, and water makers. A typical 100-foot yacht runs generators consuming 6-12 gallons per hour around the clock when at anchor. Modern solutions including lithium battery banks, solar panels, and variable-speed generators can significantly reduce this consumption, particularly for yachts that spend considerable time at anchor.