26.02.2025 21:03
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Wire Size Calculator

While working on various DIY projects, I always find myself searching for the right wire size to use. Most often, I end up choosing overly reliable wires, which create problems during soldering. Now, this information will be readily available.

Why This Calculator Is Needed

Many makers and DIY enthusiasts often don't think about choosing the right wires for their projects. As a result:

  • Wires can overheat, which may lead to insulation damage or even fire
  • Conversely, unnecessarily thick wires are used, creating problems during soldering
  • Voltage drop reduces device efficiency
  • Already completed circuits need to be redone due to incorrectly selected components

The calculator solves these problems by offering the optimal wire size based on calculation methods.

How the Calculator Works

The calculator uses two main calculation methods:

  1. Calculation using AWG tables — an international standard with recommendations for maximum current for various wire sizes
  2. Calculation by formula — uses the formula S = I / j, where j is the allowable current density (8 A/mm² for copper)

Additionally, the calculator takes into account possible voltage drop across the conductor, which is especially important for long lines or low-voltage circuits.

In simple mode, you only need to enter the voltage and current, while in advanced mode you can set additional parameters: cable length and acceptable voltage drop.

In Conclusion

https://positroid.tech/en/utilities/wire-calculator

I hope this calculator will be useful to you in your creative and technical projects. I plan to further develop this section by adding new pages about electricity, electronics, and other useful DIY tools.

Don't forget about safety in your DIY adventures!

P.S. The calculator is written by Cursor with the Claude 3.7 Sonnet model.

Tags: Diy AI Cursor

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