Enter the charge and speed of the charge into the calculator to determine the force exerted on a moving charge in a magnetic field.

Tesla To Newton Formula

The following formula is used to calculate the force exerted on a moving charge in a magnetic field.

F = q * v * B


  • F is the force exerted on the charge (Newtons)
  • q is the charge (Coulombs)
  • v is the speed of the charge (meters/second)
  • B is the magnetic field strength (Tesla)

To calculate the force, multiply the charge by the speed of the charge, then multiply the result by the magnetic field strength.

What is Tesla To Newton?

A Tesla to Newton conversion is not a direct conversion as they are units measuring different physical quantities. Tesla is a unit of measurement for magnetic field strength in the International System of Units (SI), while Newton is the SI unit for force. However, they can be related in the context of magnetic fields exerting forces on moving charges, as described by the Lorentz force law. This law states that the force (in Newtons) on a charge moving in a magnetic field (measured in Tesla) is equal to the charge times the speed times the magnetic field strength.

How to Calculate Tesla To Newton?

The following steps outline how to calculate the Tesla To Newton using the formula: F = q * v * B.

  1. First, determine the charge (q) in Coulombs.
  2. Next, determine the speed of the charge (v) in meters/second.
  3. Next, determine the magnetic field strength (B) in Tesla.
  4. Next, use the formula F = q * v * B to calculate the force exerted on the charge (F) in Newtons.
  5. Finally, calculate the Tesla To Newton.
  6. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

charge (q) = 2 Coulombs

speed of the charge (v) = 5 meters/second

magnetic field strength (B) = 3 Tesla