Percent Yield Calculator
How to Calculate Percent Yield
Percent yield is used in chemistry to compare the actual amount of product obtained to the theoretical maximum.
Percent Yield = (Actual Yield / Theoretical Yield) × 100
For example, if the theoretical yield is 50 g and you obtained 42 g:
(42 / 50) × 100 = 84%
Example
Actual yield: 18 g, Theoretical yield: 20 g
(18 / 20) × 100 = 90%