Coil Calculator

Calculate inductance, wire length, number of turns, and coil dimensions for air core and ferrite core inductors. Design optimal coils for your applications.

Coil Calculator

Calculation Results

Inductance
-- μH
Wire Length
-- m
DC Resistance
-- Ω
Q Factor
-- Q

Coil Parameters

Number of Turns:--
Coil Diameter:-- mm

How to Use This Calculator

1

Select Calculation Type

Choose what you want to calculate: inductance from turns, turns from inductance, or wire length from turns.

2

Choose Coil Type

Select air core for no magnetic core or ferrite core for magnetic core applications.

3

Enter Parameters

Input the required coil dimensions, wire specifications, and operating frequency.

4

Select Core Material

For ferrite cores, choose the appropriate material or enter custom relative permeability.

5

Review Results

The calculator shows inductance, Q factor, wire length, and other coil parameters.

6

Analyze Performance

Use the analysis charts to understand coil behavior across different frequencies.

7

Save Calculations

Your calculations are automatically saved to history for future reference and comparison.

Tips

  • Inductance increases with more turns and larger coil diameter
  • Air core coils have lower inductance but higher Q factor than cored coils
  • Ferrite cores increase inductance but may reduce Q factor due to losses
  • Wire length affects DC resistance and Q factor

Important Notes

  • • Calculations assume ideal conditions
  • • Real coils have parasitic effects
  • • Temperature affects wire resistance
  • • Consider safety margins for high current applications

Frequently Asked Questions

Coil Calculator for Electromagnetic Design