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Motor Power Calculator

Calculate full load current, starting current (LRA), absorbed load, and input power (P/Q/S). NEC Art. 430 and IEC 60034 reference. Three-phase and single-phase.

// INPUTS
kW (nameplate output)
Locked Rotor to Full Load Amps ratio
Check inputs — values must be positive and within range.
Full Load Current A
Starting Current (LRA) A
Absorbed Load kW
PIN Effective (kW) kW
Q Reactive (kVAR) kVAR
S Apparent (kVA) kVA
Disclaimer: For reference and preliminary estimation only. Verify results against the applicable code, project specification, and equipment data before use in design documents.
// RELATED TOOL
LoadList-LMX
Full load summary tool — automates demand and diversity factor calculations, panel-level rollups, and design load outputs for the entire project.
Load Summary Fundamentals →
COMING SOON
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