Ferrite Toroid Inductance and Winding Calculator

Calculate Your Ferrite Toroid Parameters

Utilize our free Ferrite Toroid Calculator to swiftly determine either the inductance of your toroid with a known number of turns or the required turns for a target inductance. Ideal for RF choke and filter design, this tool simplifies inductor calculations for electronics enthusiasts and engineers.

Formula:

To calculate Inductance (L) in microhenries (µH) from AL Value (nH/turn²) and Number of Turns (N):

L = AL × (N / 1000)2

To calculate Number of Turns (N) from Desired Inductance (L) in microhenries (µH) and AL Value (nH/turn²):

N = 1000 × √(L / AL)

Where:
  • L = Inductance (µH)
  • AL = Inductance Factor (nH/turn²)
  • N = Number of Turns

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