Enter the suppression time and the epoch length into the Calculator. The calculator will evaluate the Suppression Ratio. 

Suppression Ratio Formula

BSR = ST/EL * 100


  • BSR is the Suppression Ratio (%)
  • ST is the suppression time
  • El is the epoch length

To calculate Suppression Ratio, divide the suppression time by the epoch length, then multiply by 100.

How to Calculate Suppression Ratio?

The following steps outline how to calculate the Suppression Ratio.

  1. First, determine the suppression time. 
  2. Next, determine the epoch length. 
  3. Next, gather the formula from above = BSR = ST/EL * 100.
  4. Finally, calculate the Suppression Ratio.
  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.

suppression time = 0.5

epoch length = 0.23