Motor Current Calculator

Change any input to update the calculation. Unit changes preserve the physical quantity.

CALCULATION SETUP

Inputs

Solve forPreset

Supply system

Supply voltage (line-to-line for three phase)

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Power factor

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Motor efficiency

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Mechanical shaft output

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Calculated locally in your browser. No sign-up or input upload.

CALCULATED VALUE

Estimated running current

10.3772 A

Mechanical shaft output

5.5 kW7.3756 hp

Real electrical input

6.1111 kW8.1951 hp

Motor losses

0.6111 kW0.8195 hp

Apparent input

7.1895 kVA

Result interpretation: Estimate motor running current from shaft output, efficiency and power factor

Only the result summary and canonical link are shared. Inputs and free-form names are excluded.

A shaft-load estimate, not nameplate full-load current, locked-rotor current, protection selection or installation approval.