Energy Use Calculator
Estimate fuel or electricity use and cost. Choose unit system.
Units
Metric (kW, kWh, L)
US (kW, kWh, gal)
Generator / Fuel
Electric
By power (kW & SFC)
By fuel rate (vol/hr)
Rated power (kW)
Load factor (0–1)
Average fraction of rated power
Specific fuel use (SFC)
Diesel – typical
Diesel – efficient
Gasoline – small
Custom
L/kWh (Metric) · gal/kWh (US)
Fuel rate at load
L/hr (Metric) · gal/hr (US)
Run time (hours)
Count (same units)
Fuel price (optional)
per L (Metric) · per gal (US)
Fuel used (total)
Avg. fuel rate
Energy (if by power)
Cost (optional)
Items counted
Mode
By power: Energy = kW × load × hours × count. Fuel = Energy × SFC.
Connected power (kW)
Load factor (0–1)
Run time (hours)
Count (same units)
Electricity price (optional)
per kWh
Energy used
Avg. demand
Cost (optional)
Energy = kW × load × hours × count. Avg. demand = kW × load × count.