Percent Yield: 2 g Actual vs 4 g Theoretical
Obtaining 2 g of product when 4 g is theoretically expected gives a percent yield of 50%.
How to use this tool
- Enter actual yield and theoretical yield in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your percent yield and the full breakdown beneath it.
Calculate the percent yield when exactly half of the theoretical product is recovered.
Frequently asked questions
- Can percent yield exceed 100%?
- No — a yield above 100% indicates an error such as impure product, incomplete drying, or a mistake in calculating the theoretical yield.
- What is a 'good' percent yield?
- Depends on the reaction. Industrial processes often target >90%; complex organic syntheses may only achieve 30–50% per step.