Recipe Scaler Calculator — Scale Recipes Up or Down
Scale Factor
2.00x
Scaled Ingredients
How to Scale a Recipe
Multiply every ingredient by new servings / original servings. Handles fractions and mixed numbers.
Enter one ingredient per line: number, optional unit, name. Recognizes 1/2, 3/4, 1 1/2.
Some recipes do not scale linearly. Baking times and spices may need manual adjustment.
Frequently Asked Questions
How do I scale a recipe from 4 to 6 servings?
Divide 6 by 4 for a scale factor of 1.5, then multiply every ingredient by 1.5.
Can I halve a recipe accurately?
Yes. For eggs, beat one egg and use half, or use a small egg.
Do cooking times change when scaling?
Often yes. Larger volumes take longer. Always check for doneness rather than relying on time.
Does this handle fractions?
Yes, enter 1/2, 3/4, or mixed numbers like 1 1/2. Results display as decimals.