⛽ Power & Energy
Generator Fuel Consumption Calculator
Calculate fuel consumption, cost, and runtime for generators.
⚡ Generator Specifications
Generator Rating
kW
Load Percentage
%
Typical: 75% for most applications
⛽ Fuel Details
Fuel Type
Diesel: 0.25 L/kWh, Gasoline: 0.35 L/kWh
Fuel Price
$
/L
⏱️ Runtime
Operating Hours
h
8 hours = typical workday
Fuel Tank Capacity
L
Optional: for runtime estimation
Fuel
0
Fuel Consumption
0 L
total fuel used
Hourly Consumption
0 L/h
Total Fuel Cost
$0
Runtime on Full Tank
0 h
Cost per kWh
$0
📊 Fuel Consumption Details
| Parameter | Value | Unit |
|---|
How the formula works
Consumption = Rating × Load% × Specific Fuel Consumption × Hours | Runtime = Tank Capacity ÷ Hourly Consumption
- Specific Fuel Consumption = Fuel used per kWh (varies by fuel type)
- Diesel ≈ 0.25 L/kWh, Gasoline ≈ 0.35 L/kWh
- Propane ≈ 0.40 L/kWh, Natural Gas ≈ 0.30 m³/kWh
- Actual Load = Generator Rating × Load Percentage ÷ 100
- Hourly Consumption = Actual Load × Specific Fuel Consumption
- Total Fuel = Hourly Consumption × Operating Hours
- Total Cost = Total Fuel × Fuel Price
- Runtime = Tank Capacity ÷ Hourly Consumption
- Cost per kWh = (Hourly Consumption × Fuel Price) ÷ Actual Load