Theoretical Yield Calculator

Enter percent and actual yield to find the theoretical yield using yield calculator.

Is This Tool Helpful?


Theoretical yield calculator is an online tool that calculates the theoretical yield in chemical reactions. It takes actual yield and percent yield, and finds the amount of yield in a theoretical chemical reaction.

What is theoretical yield?

Theoretical yield can be defined as quantity of a product acquired from complete conversion of the limiting reactant in a chemical reaction. It is the amount of product resulting from a seamless but theoretical chemical reaction.

That is why, theoretical yield is not the same as the amount we will essentially acquire from a reaction in the lab. It is generally expressed in terms of moles or grams.

Theoretical yield formula

Theoretical yield equation is given below:

Theoretical Yield = Actual Yield/Percent Yield x 100%

How to calculate theoretical yield?

To calculate theoretical yield, follow the example below.


Find theoretical yield if actual yield is 10 grams and percent yield is 4%.


Step 1: Identify the values.

Actual yield = 10 g

Percent Yield = 4%

Step 2: Use the formula of theoretical yield and place the values.

Ty = Actual Yield/Percent Yield x 100%

Ty = (10/4) × 100%

Ty = 250 g


  1. How to Calculate Theoretical Yields by sciencing.com