Wire Size (NEC / PUE)
Calculate Wire Size (NEC / PUE) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Wire Size (NEC / PUE)
Current, A
Cable size, mm²
4.1667
More about: Wire Size (NEC / PUE)
What it calculates
The “Wire Size (NEC / PUE)” calculator computes Cable size, mm² from 1 parameter: current, a.
Used in design, material estimation, and structural calculations.
Example calculation
With parameters Current, A = 25 the result is 4.17.
How to use
- Enter the parameter values — every field above is adjustable with a slider.
- The result and related metrics are calculated automatically as you type.
- Use the additional metrics shown (if any) where needed.
- Copy the result or bookmark the page.