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Free browser-based utility

Cable Size Calculator

Estimate conductor cross-sectional area from current, length, voltage, material, and voltage-drop target.

Planning estimate only — verify ampacity, protection, equipment ratings, installation conditions, and applicable electrical codes.
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About this tool

What is Cable Size Calculator?

Estimate conductor cross-sectional area from current, length, voltage, material, and voltage-drop target. This free browser-based electrical calculator is designed for quick planning, conversion, and engineering estimates. Enter your own values and review the result instantly without creating an account. Treat the result as a planning estimate only and follow applicable electrical codes, equipment ratings, and qualified professional guidance.

How to use

Get your result in a few steps

  1. 1

    Enter the requested electrical values.

  2. 2

    Choose any available phase, material, or sizing options.

  3. 3

    Run the calculation and review the result.

  4. 4

    Verify real-world electrical work against equipment specifications and applicable codes.

Frequently asked questions

Questions about Cable Size Calculator

Does this calculator run in my browser?

Yes. The calculation is designed to run locally in your browser.

Do I need an account?

No. Avorqin tools can be used without creating an account.

Is this a substitute for electrical codes or professional design?

No. Use the result as a mathematical or planning estimate. Verify conductor ampacity, protection, equipment ratings, installation conditions, and applicable electrical codes before real-world work.

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