SwiftCalcTools

Wire Gauge Calculator — AWG & Electrical Cable Size

Find the correct wire gauge (AWG / SWG) for any electrical circuit. Enter current load and cable length to get recommended wire size, resistance, and maximum current capacity.

🏗️ Construction & Real Estate ✅ Free

By SwiftCalcTools Editorial Team · Formula verified

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How to Use Wire Gauge Calculator

  1. 1Enter the required values in the input fields above.
  2. 2Click the Calculate button or results update instantly as you type.
  3. 3View your results in the output panel below the inputs.
  4. 4Adjust any values to recalculate instantly.