What Size Generator Do I Need?
This calculator computes what you’ll power — get the exact wattage class and the right type of generator.
- Free, no sign-up, works on any device.
Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.
What Size Generator Do I Need?
Check what you’ll power — get the exact wattage class and the right type of generator.
What must stay on?Check everything you expect the generator to run at the same time.
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