Boat Fuel Consumption Calculator

Boat Fuel Consumption Formula

The formula used to calculate a boat’s fuel consumption is:

\[ \text{Fuel Consumption} (FC) = \frac{\text{SFC} \times \text{HP}}{\text{FSW}} \]

Where:

• FC is the fuel consumption at max throttle (gallons/hour)
• SFC is the specific fuel consumption (lbs per HP), typical values:
  • Gasoline: 0.50 lbs per HP
  • Diesel: 0.40 lbs per HP
• HP is the engine horsepower.
• FSW is the fuel-specific weight (lbs per gal), typical values:
  • Gasoline: 6.1 lbs per gal
  • Diesel: 7.2 lbs per gal

Example Calculation

For a diesel engine with 200 HP:

• SFC = 0.40 lbs per HP
• FSW = 7.2 lbs per gal

\[ \text{Fuel Consumption} = \frac{0.40 \times 200}{7.2} = \frac{80}{7.2} \approx 11.11 \text{ gallons/hour} \]

What is Boat Fuel Consumption?

Boat fuel consumption is the rate at which a boat's engine uses fuel, usually measured in gallons per hour (GPH). It is affected by factors such as engine horsepower, throttle level, and fuel type.

How to Calculate Boat Fuel Consumption?

To calculate the boat's fuel consumption, use the formula provided above. Input the specific fuel consumption, horsepower, and fuel-specific weight to determine the rate of fuel consumption.