Photo by Ekaterina Belinskaya / Pexels
Calculate Fuel Consumption
Photo by Ekaterina Belinskaya / Pexels
Results
-
Gallons/Hour
-
Total Gallons
-
Estimated Cost
Photo by Christian Rojas / Pexels
How It Works
Photo by Christian Rojas / Pexels
Fuel consumption is estimated using the rule-of-thumb formula:
GPH = (HP × Throttle Factor × Specific Consumption) ÷ Fuel Weight
- Gasoline: 0.50 lb/hp/hr consumption, 6.1 lb/gal
- Diesel: 0.40 lb/hp/hr consumption, 7.1 lb/gal
Throttle factors account for the non-linear relationship between throttle position and fuel burn. At 50% throttle, engines typically use about 45% of full-throttle fuel.
Tips to Save Fuel
- Cruise at 75% throttle for the best speed-to-fuel ratio
- Keep the hull clean to reduce drag
- Trim the engine properly for your speed
- Reduce unnecessary weight on board
- Plan routes to avoid strong currents and headwinds