Boat Fuel Cost Calculator
Trip Fuel Cost
Calculate fuel cost for a boat trip
HP
hours
$
Seasonal Fuel Budget
Estimate fuel costs for the boating season
gal/hr
$
months
Formula
Fuel per Hour ≈ Horsepower × Throttle % × 0.1 gallons
Frequently Asked Questions
How much fuel does a boat use per hour?
A general rule of thumb: gasoline engines burn about 1 gallon per 10 HP per hour at full throttle. A 150 HP engine at cruising speed (50% throttle) uses about 7.5 gallons per hour.
Why is boat fuel so expensive?
Marina fuel prices are typically 20-50% higher than gas stations due to lower volume, waterfront property costs, and environmental compliance costs. Buying fuel at nearby gas stations and transporting it can save money.
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