Enter the total weight (g) and the theoretical yield (%) into the Theoretical Weight Calculator. The calculator will evaluate the Theoretical Weight. 

Theoretical Weight Formula

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

TW = W * Y/100


  • TW is the Theoretical Weight (g)
  • W is the total weight (g) 
  • Y is the theoretical yield (%) 

How to Calculate Theoretical Weight?

The following steps outline how to calculate the Theoretical Weight.

  1. First, determine the total weight (g). 
  2. Next, determine the theoretical yield (%). 
  3. Next, gather the formula from above = TW = W * Y/100.
  4. Finally, calculate the Theoretical Weight.
  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 weight (g) = 400

theoretical yield (%) = 20

TW = W * Y/100 = ?