The Reaction Yield Calculator offers two helpful functions for laboratory and classroom chemistry: (1) a percent yield calculator that computes percent yield=(actual/theoretical)×100%\text{percent yield} = (\text{actual}/\text{theoretical})\times100\%percent yield=(actual/theoretical)×100% when you provide actual and theoretical yields (in matching units), and (2) a theoretical-yield helper that estimates the theoretical number of moles (and optional mass) of product from the moles of the limiting reactant using stoichiometric coefficients from the balanced equation: nproduct=nlimiting×(b/a)n_{\text{product}} = n_{\text{limiting}} \times (b/a)nproduct​=nlimiting​×(b/a). Enter molar mass of the product to convert moles to grams. This tool is ideal for planning reactions, checking lab results, and teaching stoichiometry — always validate with balanced equations and lab safety procedures.