This calculator estimates how many gallons of fuel per hour a small portable generator might use at a given load.
Enter generator watt rating, load percentage, tank size, and fuel type to estimate hourly use and approximate runtime.
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GeneratorCalc
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Generator fuel consumption and runtime calculator
Use this calculator to get a rough idea of how much fuel your generator might burn each hour at a given load.
It is based on common fuel burn patterns for small portable generators and is meant for planning, not a substitute for your model’s official specifications.
Generator fuel use and runtime
Estimate gallons per hour and how long your fuel tank might last at a given load.
For more planning tools, you can also use the other calculators and guides on the
GeneratorCalc home page.