Solenoid Magnetic Field Calculator

Your details

Choose which quantity to compute from the other three.
Total number of wire loops wound along the solenoid.
Axial length of the solenoid from one end to the other.
cm
Electric current through the wire winding, in amperes.
A
Target magnetic flux density inside the solenoid, in tesla. Only used when solving for I, N, or L.
T
The material filling the solenoid core. Ferromagnetic cores multiply the field by the relative permeability.
Magnetic field (B)Moderate field (milli-tesla range)
0.006283T

Magnetic flux density at the centre of the solenoid

Field in millitesla6.2832mT
Field in gauss62.832G
Magnetic field intensity (H)5,000A/m
Turn density (n)2,500turns/m
Relative permeability (μr)1
Solved quantity0.0063
6.2832 mT
Ultra-weak<0.1Weak0.1-1Moderate1-10Strong10-50Very strong50+

B = 6.283e-3 T inside the solenoid.

  • The magnetic flux density at the solenoid centre is 6.283 mT (62.83 G).
  • The winding density is 2500.0 turns/m.
  • The H-field (magnetising force) is 5000.0 A/m, which is independent of the core material.

Next stepThis field strength is suitable for electromagnets, relays, and inductive sensors.

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