Enter the actual discharge and the theoretical discharge into the Calculator. The calculator will evaluate the Discharge Loss Coefficient. 

Discharge Loss Coefficient Formula

DLC = Qa / Qt


  • DLC is the Discharge Loss Coefficient ()
  • Qa is the actual discharge
  • Qt is the theoretical discharge

To calculate Discharge Loss Coefficient, divide the actual discharge by the theoretical discharge.

How to Calculate Discharge Loss Coefficient?

The following steps outline how to calculate the Discharge Loss Coefficient.

  1. First, determine the actual discharge. 
  2. Next, determine the theoretical discharge. 
  3. Next, gather the formula from above = DLC = Qa / Qt.
  4. Finally, calculate the Discharge Loss Coefficient.
  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.

actual discharge = 50

theoretical discharge = 75