Enter the weight of H2O lost by transpiration (kg) and the weight of dry material produced into the Transpiration Rate Calculator. The calculator will evaluate the Transpiration Rate. 

Transpiration Rate Formula

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

TR = H2O / DM

Variables:

  • TR is the Transpiration Rate (kg H2O:dry material)
  • H2O is the weight of H2O lost by transpiration (kg) 
  • DM is the weight of dry material produced 

How to Calculate Transpiration Rate?

The following steps outline how to calculate the Transpiration Rate.


  1. First, determine the weight of H2O lost by transpiration (kg). 
  2. Next, determine the weight of dry material produced. 
  3. Next, gather the formula from above = TR = H2O / DM.
  4. Finally, calculate the Transpiration Rate.
  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.

weight of H2O lost by transpiration (kg) = 34

weight of dry material produced = 57

TR = H2O / DM = ?