Watts to Amps Calculator

Convert watts to amps for DC, single-phase AC, or three-phase AC with voltage and power factor.

Results will appear here.

Planning estimate only, not financial, tax, or legal advice. Verify assumptions and current rules before making decisions.

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Formula & evidence

How this calculator works

Reviewed July 2026

Formula

DC: I = P ÷ V. Single-phase AC: I = P ÷ (V × PF). Three-phase AC: I = P ÷ (√3 × V × PF).

Sources

Sources support the method, terminology, or planning context. Editable assumptions remain your responsibility.

Privacy: Inputs and results stay in this browser. Results are planning estimates, not professional advice.