Enter the total flux and total area into the calculator to determine the flux density. This calculator can also determine the flux or area when provided the other variables.

Flux Density Formula

The following formula is used to calculate a flux density.

FD = Φ / A
  • Where FD is the flux density
  • Φ is the total flux
  • A is the total area

To calculate flux density, divide the total flux by the total area.

Flux Density Definition

A flux density is defined as the total flux per unit of the area generated from a magnetic field.

Flux Density Example

How to calculate flux density?

  1. First, determine the total flux.

    Calculate the total flux generated from the magnetic field.

  2. Next, determine the total area.

    Measure the total area the flux is acting on.

  3. Finally, calculate the flux density.

    Divide the flux by the area to find the flux density.


What is flux density?

Flux density is the total flux per unit area that is being generated by a magnetic field.