Inductors in Series Calculator

Calculate total inductance for multiple inductors connected in series quickly and accurately.

Total Inductance (Ltotal):

What is an Inductors in Series Calculator?

An Inductors in Series Calculator is a specialized engineering tool designed to determine the equivalent inductance when multiple inductors are connected end-to-end in a single path. In electronic circuit design, understanding how components interact in a series configuration is fundamental for building filters, oscillators, and power supplies.

The Formula for Inductors in Series

The calculation for inductors in series is quite straightforward, provided there is no mutual inductance (magnetic coupling) between the components. The total inductance (Ltotal) is simply the sum of all individual inductances:

Ltotal = L1 + L2 + L3 + ... + Ln

This behavior is identical to how resistors behave in a series circuit. When you place inductors in a row, the magnetic flux produced by the current flows through each one sequentially, effectively increasing the total ability of the circuit to oppose changes in current.

How to Use This Calculator

Using our tool is simple and eliminates the need for manual unit conversions:

  • Enter Values: Input the numerical value of your first and second inductors in the provided fields.
  • Select Units: Choose the appropriate unit (H, mH, µH, or nH) for each component. Our tool handles mixed units automatically.
  • Add More: If you have more than two inductors, click "+ Add Inductor" to include more fields.
  • Calculate: Click the calculate button to see the result instantly formatted in multiple units for your convenience.

Frequently Asked Questions

Does the order of inductors matter?

No, the order of inductors in a series circuit does not change the total inductance. The sum remains the same regardless of which inductor comes first.

What about Mutual Inductance?

This calculator assumes the inductors are shielded or placed far enough apart that their magnetic fields do not interact. If inductors are physically close, mutual inductance (M) must be considered, which can either increase or decrease the total inductance depending on the winding direction.

Why is series inductance used?

Series inductance is often used to achieve a specific inductance value that isn't available as a single standard component or to distribute voltage across multiple components in high-voltage applications.