Magnetic Field of a Wire
Calculate Magnetic Field of a Wire instantly with the exact formula and a worked example. Free online calculator — no signup, works on mobile.
Magnetic Field of a Wire
I, A
r, m
B
0.00004T
More about: Magnetic Field of a Wire
What it calculates
The “Magnetic Field of a Wire” calculator computes B in T from 2 parameters: i, a, r, m.
A standard physics formula used in educational and engineering tasks.
Example calculation
With parameters I, A = 10, r, m = 0.05 the result is 0 T.
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.