Solenoid Coil Electromagnetic Force Calculator

Electrical
1 minute

Find the force by entering the values for current, coil area, number of turns, and coil length.

Use this calculator to determine the magnetic force between a solenoid coil and a ferromagnetic material. Simply input the current, coil area, number of turns, and coil length to obtain the result.

Current
amps
Area
m2
Number of turns
turns
Length
m
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    13 Number of calculations
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    F = \frac{{(n \cdot i)^2 \cdot \text{{magnetic constant}} \cdot a}}{{2 \cdot g^2}}

    Where:

    • F = Force,
    • i = Current,
    • g = Length of the gap between the solenoid and a piece of metal,
    • a = Area n = Number of turns,
    • Magnetic constant = 4 x PI x 10-7.