Enter any ratio (X/Y) into the Inverse Ratio Calculator. The calculator will evaluate and display the Inverse Ratio. 

Inverse Ratio Formula

The following formula is used to calculate the Inverse Ratio. 

IR = 1 / R

  • Where IR is the Inverse Ratio (Y/X)
  • R is the any ratio (X/Y) 

How to Calculate Inverse Ratio?

The following example problems outline how to calculate Inverse Ratio.

Example Problem #1:

  1. First, determine the any ratio (X/Y). 
    • The any ratio (X/Y) is given as: 4/5.
  2. Finally, calculate the Inverse Ratio using the equation above: 

IR = 1 / R

The values given above are inserted into the equation below and the solution is calculated:

IR = 1 / (4/5) = 5/4


Example Problem #2: 

For this problem, the variables required are provided below:

any ratio (X/Y) = 6/10

Test your knowledge using the equation and check your answer with the calculator above.

IR = 1 / R = ?