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Electrical Calculator

Voltage Drop Calculator

Calculate cable voltage drop and verify NEC/IEC compliance. Size cables correctly for any run.

Cable Parameters

Cable Circuit — Illustrative
SOURCE 230V CONDUCTOR (L) NEUTRAL (N) LOAD V−ΔV R = ρL / A VOLTAGE DROP (ΔV) PASS: <3% WARN: 3–5% FAIL: >5%

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