Single-Phase Power Calculator
Calculate single-phase real, apparent, reactive power, and current.
Result
Complete the fields to calculate.
Formula and method
P = V × I × FP
Important assumptions
The equation uses RMS values and a power factor between 0 and 1.
Frequently asked questions
Does the calculation run locally?
Yes. Values are processed in your browser and are not sent to a server.
Can I use it for a real installation?
Use it as an educational reference and verify components, tolerances, safety, and applicable code with technical documentation or a qualified person.
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