Generator Fuel Consumption Calculator
Estimate fuel usage and cost for your generator
Generator Fuel Consumption Calculator
Estimate fuel usage for various generator types
Results:
Total Fuel Consumed: 0.00 Liters
Total Fuel Cost: 0.00
How to Use the Calculator
Input Generator Details
- Enter the generator's rated power in Kilowatts (kW).
- Specify the expected load percentage (e.g., 75% for typical operation).
- Select the type of fuel your generator uses (Diesel, Gasoline, or Propane).
Input Operating Parameters
- Enter the total number of hours you plan to operate the generator.
- Provide the current price of your selected fuel type per liter or gallon.
- Choose the correct unit for the fuel price (Liter or Gallon).
View Results
- Click the "Calculate" button to see the estimated total fuel consumed.
- The total fuel cost will also be displayed based on your inputs.
- Click "Reset" to clear all fields and perform a new calculation.
Generator Fuel Consumption Fundamentals
Factors Affecting Consumption
Generator fuel consumption is influenced by:
- Generator's rated power (kW)
- Actual load percentage (how much power is being used)
- Fuel type (Diesel, Gasoline, Propane have different energy densities)
- Generator efficiency and age
Fuel Types & Rates
- Diesel: Generally most fuel-efficient for larger generators.
- Gasoline: Common for smaller, portable generators.
- Propane (LPG): Burns cleaner, but often has higher consumption rates per kWh.
Approximate Fuel Consumption Rates (per kW-hour at 100% load):
Diesel: ~0.3 Liters/kWh (0.079 Gallons/kWh)
Gasoline: ~0.45 Liters/kWh (0.119 Gallons/kWh)
Propane: ~0.55 Liters/kWh (0.145 Gallons/kWh)
Calculation Formulas
Actual Power (kW):
Actual Power = Generator Power × (Load Percentage / 100)
Total Fuel Consumed:
Total Fuel = Actual Power × Fuel Rate per kWh × Operating Hours
Total Fuel Cost:
Total Cost = Total Fuel × Fuel Price per Unit
Example Calculation
Diesel Generator:
Generator Power: 10 kW
Load Percentage: 75%
Operating Hours: 8 hours
Fuel Price: $1.20 per Liter
Actual Power = 10 kW × (75 / 100) = 7.5 kW
Total Fuel = 7.5 kW × 0.3 L/kWh × 8 hours = 18 Liters
Total Cost = 18 Liters × $1.20/Liter = $21.60
Total Fuel Consumed = 18.00 Liters | Total Fuel Cost = $21.60
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