Recipe Scaler - Resize Ingredients by Servings
Paste ingredients and scale amounts and units to any number of servings
Runs in your browser · nothing is uploaded
Updated 2026-10-04The starting ingredient list and 2 to 5 servings are just an example. Paste your own recipe and change the servings.
The number of servings written in the recipe.
How many servings you want to make.
Write each name and amount, like flour 200 g, milk 1 1/2 cups or 2 eggs. Only the first amount on each line is changed, and lines without an amount stay as they are.
Multiplier 2.5, 5 lines scaled
Scaled ingredients
x2.5 · 5 lines scaled, 1 left as they were
- flour 500g
- milk 3 3/4 cups
- sugar 5 tbsp
- salt 1 1/4 tsp
- 5 eggs
- oil, a littleunchanged
Cups, tablespoons and teaspoons are rounded to whichever of 1/8 or 1/3 steps is closer (⅓ cup × 2 = 2/3 cup), counts to 1/4, shown as fractions (at x1 a line is left untouched). Three or more teaspoons become tablespoons only when it comes out in 1/4 steps, and 1,000 g or ml become kg or L. If a line has several amounts only the first is changed, and numbered lists (1. 2.) are not supported because they cannot be told apart from amounts. Baking time, pan size and seasoning may not scale linearly, so taste and adjust. What you paste stays in your browser.
What it is
Recipes are usually written for 2 or 4 servings, but when guests come over or you are meal-prepping, the amounts have to change. Doing it by hand means awkward sums such as multiplying 1 1/2 cups by 2.5. This recipe scaler lets you paste an ingredient list, one per line, enter the original and wanted servings, and it finds the first amount on each line and multiplies it. Cups and spoons come out as clean fractions, grams and milliliters as tidy numbers, and counts in half steps. Lines without a number stay as they are, and you can copy the whole result in one click. What you paste stays in your browser.
How to use
- Enter the recipe’s original number of servings and the number you want.
- Paste the ingredients, one per line. Leading bullets (-, a dot) are removed.
- Check the scaled amounts line by line. Lines tagged as unchanged need your own judgment.
- Use the copy button to take the whole result.
How it works
- Multiplier = wanted servings divided by original servings.
- Only the first amount on each line is changed. Any further amounts on the same line are left as they are.
- Cups, tablespoons and teaspoons are rounded to whichever of 1/8 or 1/3 steps is closer, since measuring sets include ⅓ and ⅔: ⅓ cup doubled shows as 2/3 cup, not 5/8. Counts like cloves or slices are rounded to 1/4. All are shown as fractions.
- Grams and milliliters are shown as whole numbers from 100 up, and with one or two decimals below that.
- Three or more teaspoons become tablespoons, less than one tablespoon becomes teaspoons, and 1,000 g or ml become kg or L.
- Numbered lists (1. 2.) are not supported because they cannot be told from amounts. Servings go up to 1,000 and lists up to 200 lines.
Example
Scaling a 2-serving recipe to 5 servings (x2.5):
| Original | Scaled |
|---|---|
| flour 200 g | flour 500 g |
| milk 1 1/2 cups | milk 3 3/4 cups |
| sugar 2 tbsp | sugar 5 tbsp |
| salt 1/2 tsp | salt 1 1/4 tsp |
| 2 eggs | 5 eggs |
| oil, a little | unchanged |
Good to know
At large or small multipliers, taste and doneness can change. Add about 90% of the seasoning and taste before adding more, and for oven dishes check the pan size and baking time as well.
FAQ
How are the amounts calculated when I change the servings?
The tool divides the servings you want by the original servings and multiplies the first amount on every line by that multiplier. Going from 2 to 5 servings gives x2.5, so 200 g of flour becomes 500 g. The multiplier is shown above the result.
What kinds of amounts can it read?
Numbers and fractions such as 200, 0.5, 1/2, 1 1/2 and the one-half character, plus ranges like 2-3. Units it recognizes include g, kg, ml, cup, tbsp, tsp, oz, lb, clove and pinch, and the amount may come before or after the ingredient name.
What happens to lines without an amount, like salt to taste?
Lines with no number are kept as they are and tagged as unchanged. For things like a pinch or to taste, adjust by tasting.
Why did 3 teaspoons turn into 1 tablespoon?
The tool tidies units to be easier to read. Three or more teaspoons become tablespoons, less than a tablespoon becomes teaspoons, and 1,000 g or 1,000 ml become kg and L. The quantity is the same, only the unit changes.
Is multiplying enough for the dish to turn out well?
Not always. Seasoning, salt, baking time, pan size and rising time do not grow in a straight line with the amount. For baking especially, a big change in scale can change the result, so adjust step by step.
