Generator Wattage Sizing Calculator
Construction & Home ImprovementSizes the generator needed to power a combined set of appliances, accounting for running and surge wattage.
Required Generator Size (kVA)
The minimum recommended generator size, keeping it under its safe operating capacity.
Apparent Power (VA)
2,500.0
The peak apparent power demand during appliance startup.
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Construction & Home Improvement calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Construction & Home Improvement calculators
Frequently Asked Questions
Why size for surge watts instead of running watts?
Many appliances (especially those with motors, like refrigerators and air conditioners) draw a brief surge of extra power when starting up -- a generator must be sized to handle that peak surge, not just the steady running load, or it can stall or shut down when appliances start.
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