Magnetic Field Calculator

How is the magnetic field calculated?

The field data in our magnetic field calculator is derived from a series of finite element analysis studies for a single magnet in free space. While we have verified the accuracy of results with our own test methods, be sure to verify with your own measurements in your particular application. Other nearby magnets or ferromagnetic materials can dramatically alter your results.

Related topics

• Surface Fields 101

  

  Learn about surface field calculations for magnets.

• Measuring Magnets

  

  Learn the best ways to measure magnets and mistakes to avoid.

• Viewing Magnetic Fields

  

  Learn the best ways to view magnetic fields.

• Magnetic Fields

  

  Learn the basics of magnetic fields.

About our magnetic field calculator

While K&J Magnetics offers diametrically magnetized disc, clyinder and ring magnets, our magnet magnetic field calculator only considers discs, cylinders and rings that are magnetized along the cylindrical axis.

Our magnetic field calculator is currently a beta version and is intended only for reference. K&J Magnetics, Inc. will not be held liable for its use. All calculations are approximations and should not be used as the sole source of design data. The factors of your application may change these values considerably. Be sure to test magnets in your configuration.

The measurement position assumes the zero position (0,0) is at the center of the magnet, inside the magnet.

Please report any troubles, concerns or suggestions about this calculator to: contactus@kjmagnetics.com.