Recipe scaler (double or halve servings)
Paste the ingredient list and change the yield: the tool multiplies the amounts to double, triple or halve the recipe, including fractions like 1/2 cup.
How to useScale a recipe up or down
Available in: 
Recipe scaler (double or halve servings): what it is for
Paste the ingredient list and enter the original and new yield. The tool multiplies the amount at the start of each line, understands fractions like 1/2 and 1 1/2, and shows the result rounded to kitchen measures, ready to copy.
How to use
- Paste the ingredients, one per line.
- Enter the original and the desired yield.
- Copy the adjusted recipe.
When to use it
- Make half a cake recipe.
- Double a recipe for a party.
- Fit the yield to the number of people.
Frequently asked questions
Which numbers are adjusted?
Only the amount at the start of each line, like 2 cups or 1/2 spoon. Numbers in the middle of the text, like the oven temperature, stay as they are.
Does baking time change when I double a recipe?
If the pan is bigger or the batter is deeper, the time usually goes up. Use a toothpick to check, and prefer splitting into two pans the same size as the original.
What about half an egg?
When half an egg is left, beat the egg and use half, or round up for cake batters. The tool shows the exact fraction so you can decide.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.