# Magnetic Field Strength Calculator

The magnetic field strength differs greatly upon the type of device or properties. Below are the online magnetic field strength calculators to find around a wire, magnetic field strength inside a loop and magnetic field inside a solenoid.

Firstly, the formula to calculate magnetic field strength around a wire is given by:

where,
B = Magnetic field strength [Tesla]
k = Permeability of free space (2x10^-17)
i = Current [amps]
L = Distance from wire [meters]

## Magnetic Field Strength Around a Wire Calculator

 Current (i): amps Distance from Wire (L): meters Magnetic Field Strength Around Wire (B): Tesla

The formula to calculate magnetic field strength inside a loop is given by:

where,
N = Number of coils

## Magnetic Field Strength Inside a Loop Calculator

 Number of Coils (N): Current (i): amps Coil Radius (r): meters Magnetic Field Strength Inside a Loop: Tesla

Now, let us look at the formula to calculate magnetic field strength inside a solenoid,

where,

n = number of turns/m

## Magnetic Field Strength Inside a Solenoid Calculator

 Current (i): amps number of turns/m (n): Magnetic Field Strength Inside a Solenoid (B): Tesla

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