Grocery List Quantity Scaler

How this works

This calculator reads the leading number on each line of your list (whole numbers, decimals, or simple fractions like 1/2 or 1 1/2), multiplies it by your chosen scale factor, and rebuilds the line with the new quantity — leaving the rest of each line (the unit and ingredient name) unchanged. It's useful for doubling a week's grocery list for a dinner party, or scaling a shopping list down for a smaller household.

Source: This tool applies straightforward multiplication to each line's leading quantity; the underlying principle is the same proportional recipe-scaling method used by this site's Recipe Scaler & Multiplier calculator, applied across a whole shopping list instead of a single recipe.