๐Ÿณ Recipe Scaler

Ingredients
Ingredient name3 (3)
Ingredient name1 1/2 (1.5)
Ingredient name3/4 (0.75)

Specify a recipeโ€™s original serving count and how many servings you want to make, and this tool automatically scales each ingredientโ€™s quantity. Results are shown as both decimals and practical fractions, handy for measuring spoons and cups.

How to use

  1. Enter the recipeโ€™s original number of servings.
  2. Enter the number of servings you want to make.
  3. Enter each ingredientโ€™s name and quantity (use "Add ingredient" for more rows).
  4. The scaled quantities are shown automatically as both decimals and fractions.

How the calculation works

Recalculate every ingredient when you change the number of servings. Enter the original and target servings and the ingredients with their amounts, and each amount is multiplied by the same factor. New amount = original amount ร— (target servings รท original servings) Results are shown as decimals and as fractions up to sixteenths, easy to use with measuring spoons and cups: 0.75 becomes โ€œ3/4โ€ and 1.5 becomes โ€œ1 1/2โ€. Add and remove ingredients freely.

Worked example

A curry for 4 made for 6 (factor 1.5) Onions 2 โ†’ 3 Meat 300 g โ†’ 450 g Curry roux 1/2 box โ†’ 3/4 box Water 800 mL โ†’ 1200 mL Halving a recipe for 2 to 1 turns 3 tablespoons into 1 1/2.

Things to be aware of

  • Salt, spices and thickeners can end up too strong or too weak when scaled strictly. Add less, taste and adjust.
  • Cooking and baking times do not scale with quantity; adjust them for the size of your pan or oven.
  • Round hard-to-split ingredients, such as eggs, to the nearest whole number.

FAQ

What calculation does this do?

A simple proportional scaling: each ingredientโ€™s quantity is multiplied by (target servings รท original servings).

Why are fractions shown too?

Measuring spoons and cups are typically marked in fractions (like 1/2 tablespoon), so results are shown as practical fractions (down to 1/16) alongside the decimal value.

Should seasoning quantities scale the same way?

Proportional scaling works for most ingredients, but for salt and strong spices, taste can shift noticeably with large serving changes โ€” taste and adjust as you go.