Calculator
Generator Size Calculator
Add the appliances you need during an outage and find the running and starting watts your generator must supply.
How it is calculated
Running watts = sum of all appliances you run at once. Starting watts = running watts + the single largest motor surge (fridges, pumps, AC compressors start at 2–3× their running watts). We add a 20% safety margin. Fuel use is estimated at typical half-load consumption for a generator of that size.
Results are estimates for planning, not bills or professional advice. For generator hookups use a transfer switch installed by a licensed electrician.
Recent reports across the U.S.
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Auto-resolved Baker, LA 70714 · East Baton Rouge Parish “Resolved automatically: no new outage reports for 24 hours”
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Auto-resolved Clarksville, TN 37040 · Montgomery County “Resolved automatically: no new outage reports for 24 hours”
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Auto-resolved Clarksville, TN 37043 · Montgomery County “Resolved automatically: no new outage reports for 24 hours”
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Auto-resolved Branson, MO 65616 · Taney County “Resolved automatically: no new outage reports for 24 hours”
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Auto-resolved Keota, IA 52248 · Keokuk County “Resolved automatically: no new outage reports for 24 hours”
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