Enter the total percent of leaf disks float (%) and the total time (min) into the ET50 Calculator. The calculator will evaluate the ET50. 

ET50 Formula

The following two example problems outline the steps and information needed to calculate the ET50.

ET50 = T / PFL * 50

Variables:

  • ET50 is the ET50 ( )
  • PLF is the total percent of leaf disks float (%) 
  • T is the total time (min) 

How to Calculate ET50?

The following steps outline how to calculate the ET50.


  1. First, determine the total percent of leaf disks float (%). 
  2. Next, determine the total time (min). 
  3. Next, gather the formula from above = ET50 = T / PFL * 50
  4. Finally, calculate the ET50.
  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.

total percent of leaf disks float (%) = 60

total time (min) = 3

ET50 = T / PFL * 50 =?