Biot-Savart Law Calculator

Biot-Savart Law Calculator

Calculate the magnetic field at the center of a circular loop.

Enter Input Parameters

e.g., 1 A

e.g., 0.1 m

e.g., 1 (single loop); enter more for a multi-turn coil

For a circular loop: $$ B = \frac{\mu_0\, N\, I}{2\, R} $$
where \(\mu_0 = 4\pi \times 10^{-7}\) T·m/A.