Recipe Converter / Scaler

Adjust ingredient quantities for different serving sizes.

Enter amounts and units clearly (e.g., 2 cups, 1.5 tsp, 1/2 lb).
OR (Use only one method: Factor OR Servings)

Scaled Recipe:

Scaled ingredients will appear here.

Scaling Recipes Up or Down

Found a great recipe but need to make more or less than it calls for? Manually adjusting each ingredient quantity can be time-consuming and prone to errors, especially with fractions or different units. This Recipe Converter helps you easily scale all ingredients by a specific factor or based on a change in serving size.

How to Use

  1. Paste your **Original Recipe Ingredients** into the text box, with each ingredient and its quantity on a **separate line**. Clearly state the quantity and unit (e.g., "2 cups flour", "1.5 tsp salt", "1/2 lb butter").
  2. Choose **one** scaling method:
    • **Scale By Factor:** Enter a multiplier (e.g., "2" to double, "0.5" to halve, "1.5" to increase by 50%).
    • **Scale By Servings:** Enter the number of servings the Original Recipe makes and the New number of Servings you want to make. The calculator will determine the factor.
  3. Click "Scale Recipe".

The "Scaled Recipe" box will display the adjusted ingredient list with multiplied quantities. It attempts to handle fractions and common units, but complex or unusual units might not scale perfectly.

Calculation Logic

  • The calculator determines a **scaling factor**. If using the factor method, that's the factor. If using servings, Factor = New Servings / Original Servings.
  • It parses each line of the input, trying to identify a numerical quantity (including fractions like 1/2 or mixed numbers like 1 3/4) at the beginning.
  • It multiplies the identified quantity by the scaling factor.
  • It attempts to keep the original units and ingredient name intact.
  • Fractional results might be displayed as decimals or simplified fractions depending on the implementation.

Tips:** Ensure your original recipe uses clear quantities and units. Double-check the scaled recipe for reasonableness, especially with sensitive ingredients like yeast or baking soda, which sometimes don't scale linearly perfectly.