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Sumivo · Electrical

Motor Current Calculator

Estimate current for a single-phase motor from real power, voltage, and power factor.

01 / INPUTS

W
V
0–1

Single-phase calculation; power factor must be greater than 0 and at most 1.

02 / RESULT

SINGLE-PHASE CURRENT

5.11508951 A

Current
5.11508951 A
Power factor
0.85

Calculation trace

  1. 1,000 W ÷ (230 V × 0.85) = 5.11509 A
    5.11508951 A
    Single-phase current
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How it works

For a single-phase motor the current is I = P ÷ (V × power factor), with power in watts and voltage in volts.

Assumptions & limits

  • Single-phase; you supply the power factor.
  • An estimate — real running current also depends on load and efficiency.
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FAQ

Does this work for three-phase motors?
No. Three-phase current uses I = P ÷ (√3 × V × power factor); this tool is single-phase.
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