Yeast Pitch Calculator Pitch inputsEstimate pitch needs from batch volume, gravity, yeast form, and viability assumptions.Batch detailsBatch sizeFinal wort volume.Volume unitsGallonsLitersOriginal gravity°PlatoEnter OG or degrees Plato. If only one is filled in, the calculator derives the other.Fermentation typeAleLagerAle default: 0.75 million cells/mL/degP. Lager default: 1.5 million cells/mL/degP, with 2 commonly used for stronger lager pitching.Yeast formLiquidDrySlurryPacks or vials availableBillion cells per packEditable manufacturer assumption.Manufacture dateDry yeast available, gramsBillion cells per gramDefault assumption, not a fixed lab count.Slurry available, mLBillion cells per mLAdjust for slurry thickness and trub content.Pitch rateUse standard defaultsUse custom pitch rateMillion cells/mL/degPViabilityEstimate liquid yeast viability from manufacture date (0.7% loss per day, linear).Manual viability override, percentLeave blank for automatic liquid estimate or form defaults.CalculateResetJavaScript is unavailable, so this form calculates after page reload.