Power Cable Size Calculator
Estimate the required conductor size based on load, voltage, cable length, conductor material and allowable voltage drop.
Recommended Minimum Conductor Size
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Load Current —
Design Current —
Voltage Drop —
Available Ampacity —
| Design Check | Required Size | Status |
|---|---|---|
| Current Carrying Capacity | — | PASS |
| Voltage Drop | — | PASS |
Engineering Notice: This calculator provides a preliminary conductor-size estimate. Final cable selection should be verified against the applicable IEC, NEC, BS, ICEA or project standard and actual installation conditions, including ambient temperature, grouping, installation method, soil thermal resistivity and short-circuit requirements.
Cable size is selected by checking both current-carrying capacity and voltage drop. The larger standard conductor size required by either condition becomes the recommended minimum size.