Enter the least distance of distinct vision and the focal length into the Calculator. The calculator will evaluate the Magnifying Power. 

Magnifying Power Formula

MP = 1 + D/F

Variables:

  • MP is the Magnifying Power (())
  • D (mm) is the least distance of distinct vision
  • F (mm) is the focal length

To calculate Magnifying Power, divide the least distance of distance vision by the focal length, then add 1 to the result.

How to Calculate Magnifying Power?

The following steps outline how to calculate the Magnifying Power.

  1. First, determine the least distance of distinct vision. 
  2. Next, determine the focal length. 
  3. Next, gather the formula from above = MP = 1 + D/F.
  4. Finally, calculate the Magnifying Power.
  5. 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.

least distance of distinct vision = 85

focal length = 734