Percentage Yield Calculator
⚗ Moles & Stoichiometry. Use the Percentage yield formula to find percentage yield, actual mass made, theoretical mass: pick the value you want, type the others, and the answer updates as you go.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Percentage yield | % |
| Actual mass made | g |
| Theoretical mass | g |
Worked example
Find the percentage yield when Actual mass made = 4 g, Theoretical mass = 5 g.
Using \% yield = (actual mass)/(theoretical mass) × 100: Percentage yield = 80 %.
Frequently asked questions
What is the formula for Percentage yield?
\% yield = (actual mass)/(theoretical mass) × 100.
What do the letters stand for, and what units are used?
Percentage yield in %, Actual mass made in g, Theoretical mass in g.
How do you calculate percentage yield?
Put the values into \% yield = (actual mass)/(theoretical mass) × 100. For example, with Actual mass made = 4 g, Theoretical mass = 5 g, percentage yield = 80 %.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (percentage yield, actual mass made, theoretical mass) and fill in the others: it rearranges the formula for you.
