Power Planning Calculator
Generator Size Calculator
Estimate the generator capacity needed to cover essential running loads and startup surges.
Planning estimate
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Enter your setup to calculate an estimate.
Your Setup
Use equipment labels or manufacturer specifications whenever possible.
Preset wattages are planning estimates. Replace them with the values on your equipment labels for the most reliable result.
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Twenty percent keeps normal operation below the generator limit. Large or complex motor loads may need professional sizing.
Planning estimate
Enter your setup–· Results update instantly.
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Enter your setup to see a practical planning estimate.