Work out inductance instantly with clear inputs, formula shown and shareable results.
Inductance is mu0 x mur x N squared x A / l. The key feature is the N squared term: doubling the turns quadruples inductance. Core manufacturers publish this as an AL value in nH per turn squared, so L = AL x N squared for a given core.
Inductance
L = mu0 x mur x N^2 x A / l; AL = L / N^2
Electrical results are planning estimates only. Verify against the applicable wiring rules (IEC 60364, BS 7671, NEC or local code) and have all installation work designed and checked by a qualified electrician.
One factor of N comes from the magnetising force produced, the other from the flux linkage seen by all the turns.
Above a certain flux density the permeability collapses, so inductance falls sharply with current. That is the real current limit of an inductor.