Enter the mass (kg), the velocity (m/s), and the magnetic induction (T) into the Cyclotron Radius Calculator. The calculator will evaluate the Cyclotron Radius. 

Cyclotron Radius Formula

The following formula is used to calculate the Cyclotron Radius. 

R = m*v/(B*e)


  • R is the Cyclotron Radius (m)
  • m is the mass (kg) 
  • v is the velocity (m/s) 
  • B is the magnetic induction (T) 
  • e is the charge (C)

How to Calculate Cyclotron Radius?

The following steps outline how to calculate the Cyclotron Radius.

  1. First, determine the mass (kg).
  2. Next, determine the velocity (m/s). 
  3. Next, determine the magnetic induction (T). 
  4. Next, determine the charge (C).
  5. Next, gather the formula from above = R = m*v/(B*e).
  6. Finally, calculate the Cyclotron Radius.
  7. 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.

mass (kg) = 5

velocity (m/s) = 6

magnetic induction (T) = 8

charge (C) = 1.25

R = m*v/(B*e) =  ?