Recipe Scaling Calculator
Scale any beer recipe up or down to a different batch size. Automatically adjusts grain, hops, yeast, and water volumes while maintaining ratios.
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Visualization
How It Works
Scaling a recipe is mostly straightforward — multiply all ingredients by the ratio of new batch size to old batch size. However, a few things do not scale linearly. Hop utilization changes with batch volume (larger batches may need slightly more hops for the same IBU), and yeast should always be rounded up to whole packs. Water chemistry additions should be recalculated for the new volume rather than simply multiplied, since mineral concentrations depend on the specific water-to-grain ratio. When scaling down significantly (e.g., to 1-gallon test batches), measuring errors become magnified, so weigh everything precisely.