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Details

Magnetic Field Calculator

Calculate magnetic field of magnets in free space

Diameter:
Thickness:
Measurement Position:
X:
Y:
(If unsure, leave blank.)

Results units

* Note that the Measurement Position assumes the zero position (0,0) is at the center of the magnet, inside the magnet.

All data presented in this 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 experimental measurements, be sure to verify with your own measurements in your particular application.  Other nearby magnets or ferromagnetic materials can dramatically alter your results.

All dimensions and positions must be in decimal format. Fractional inches will not calculate correctly.

This calculator only considers discs and cylinders that are magnetized along the cylindrical axis. While K&J Magnetics offers diametrically magnetized magnets, this calculator does not apply to them.

NOTE:
This 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.

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









May
Specials


DA4-neodymium-disc-magnet
10% Off
DA4
5/8" dia x 1/4" thick

R424-neodymium-ring-magnet
10% Off
R424
1/4" OD x 1/8" ID x 1/4" thick ring

MBH-2-neodymium-nametag-holder-magnet
10% Off
MBH-2
Magnetic badge holder and name tag

BX066-neodymium-block-magnet
10% Off
BX066
1" x 3/8" x 3/8" block, 22 lb pull force


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K&J Magnetics, Inc.
Your online source for incredibly powerful neodymium magnets.