How it works
Line current = power × 1,000 ÷ (√3 × line voltage × power factor × efficiency).
Input definitions
- Real power (kW)
- Enter the value in the labeled unit.
- Line-to-line voltage (V)
- Enter the value in the labeled unit.
- Power factor
- Enter the value in the labeled unit.
- Efficiency (%)
- Enter the value in the labeled unit.
A worked example
- Real power (kW)
- 30
- Line-to-line voltage (V)
- 400
- Power factor
- 0.9
- Efficiency (%)
- 92
Assumptions & limits
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.
Sources & review
Maintained by AnsRio. Methods and examples use automated checks; this does not imply independent professional certification.
Method updated 2026-10-19. Content checked against the stated method and examples. Our verification approach.
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Common questions
Why include efficiency?
Input electrical power exceeds output mechanical or process power when equipment is not perfectly efficient.
How does Three-phase current from power calculate the result?
Line current = power × 1,000 ÷ (√3 × line voltage × power factor × efficiency).
What should I verify before using Three-phase current from power?
Uses only the values entered. Rates are illustrative inputs, not live quotes, legal rules or personalised advice. Check provider terms, local requirements and measurements before acting.