Recipe Scaler

What this tool does

Enter the recipe's servings, the servings you want and one ingredient quantity; repeat for each ingredient using the same factor. Baking times, tin sizes and seasoning do not scale linearly, so treat those separately.

Formula

new quantity = quantity original × (new servings ÷ original servings)

Variables

Worked example

Limitations

• The result is an estimate based only on the values you type. Real situations often include factors this calculator does not know about.
• The calculation runs at full precision and only the display is rounded. If you copy an intermediate value and retype it, small differences can appear.