Enter any ratio (X:Y) into the Percentage From Ratio Calculator. The calculator will evaluate and display the Percentage.

Percentage From Ratio Formula

The following formula is used to calculate the Percentage From Ratio. 

P = R  * 100

  • Where P is the Percentage From Ratio (%)
  • R is the any ratio (X:Y) 

How to Calculate Percentage From Ratio?

The following example problems outline how to calculate Percentage From 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 Percentage From Ratio using the equation above: 

P = R  * 100

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

P = 4/5  * 100 = 80 (%)


Example Problem #2: 

For this problem, the variables required are provided below:

any ratio (X;Y) = 7/8

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

P = R  * 100 = ?