Percent Yield Calculator

Percent yield measures how much of the theoretical maximum you actually isolated. It is the standard efficiency score for syntheses — anything consistently below ~80% deserves a closer look at the procedure.

How to interpret the result

Worked check: 65.0 gram isolated against 72.06 gram theoretical → 90.2% yield. Both masses must use the same unit.

Assumptions

• Actual and theoretical yields are in the same mass unit
• Theoretical yield was computed from the true limiting reactant