Magnetic Field Calculator

Magnetic Field Strength Calculators

The calculators on this page are appropriate only for "Squre Loop", also known as "Straight Line", magnetic materials such as neodymium-iron-boron, ferrites and samarium cobalt magnets. They are not for use with alnico materials.

Field Strength of a Cylindrical Magnet

Z = Distance tested from magnet
L = Length of magnet
D = Diameter of magnet
Br = Residual Gauss of magnet

Z: in.
L: in.
D: in.
Br: gauss

 

Cylinder Magnet Calculation
B(z) =  Gauss

Field Strength of a Rectangular Magnet

Z = Distance tested from magnet
L = Length of magnet
A = Height of magnet
B = Width of magnet
Br = Residual Gauss of magnet

Z: in.
A: in.
B: in.
L: in.
Br: gauss

 

Block Magnet Calculation
B(z) =  Gauss
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