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Power · Calculator
Build a minimum kW and kVA planning target with surge, headroom, derating, and power factor.
Working calculator
Enter the known values. ShowSide validates them before running the calculation.
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Result
Enter running load, largest surge, headroom, derating, and power factor.
Transparent math
Planning estimate only. Qualified personnel must verify the actual equipment, conductors, protection, grounding, service, venue rules, and applicable code before energizing a system.