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Percentage Yield Calculator

Formula

The formula to calculate Percentage Yield (Y) is:

$Y = \left( \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \right) \times 100$

Where:

$Y$ is the Percentage Yield
$\text{Actual Yield}$ is the measured amount of product obtained from a chemical reaction
$\text{Theoretical Yield}$ is the maximum amount of product that can be obtained from the reaction under ideal conditions

What is Percentage Yield?

Percentage Yield (or percent yield) is a measure of the efficiency of a chemical reaction. It indicates the ratio of the actual yield to the theoretical yield, expressed as a percentage. A high percentage yield indicates that a reaction is efficient and producing a high proportion of the expected product.

Example Calculation

Suppose the Actual Yield (AY) of a reaction is 85 grams and the Theoretical Yield (TY) is 100 grams.

To calculate the Percentage Yield:

$Y = \left( \frac{85}{100} \right) \times 100 = 85\%$

Therefore, the Percentage Yield is 85%.