Wire Size (Extended)
Calculate Wire Size (Extended) instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Wire Size (Extended)
Current, A
Cable length, m
Cross-section, mm²
2.9667
More about: Wire Size (Extended)
What it calculates
The “Wire Size (Extended)” calculator computes Cross-section, mm² from 2 parameters: current, a, cable length, m.
Used in design, material estimation, and structural calculations.
Example calculation
With parameters Current, A = 16, Cable length, m = 30 the result is 2.97.
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.