Cooking Calculators
Recipe Scaler
Scale your recipe ingredients up or down.
Enter the values and review the result.
Enter the amount for a single ingredient to scale it.
Calculation assumptions
- *Scaling factor = target servings / original servings.
- *Ingredient amount is multiplied by the scaling factor.
- *Spices, salt, leavening, pan size, and cooking time may need manual adjustment.
- *Rounded amounts can affect final texture or flavor.
Enter your recipe amounts and press Scale Recipe.
Scaled ingredient amounts will appear here.
How recipe scaling works
Recipe scaling multiplies each ingredient by the ratio between your target servings and the original servings.
Example: if a recipe serves 4 and you want 6 servings, the scaling factor is 6 / 4 = 1.5. An ingredient amount of 100 g becomes 150 g.
For unit changes after scaling, try the Cooking Converter.
Common mistakes
- Scaling salt, spices, or leavening exactly without tasting or checking the recipe style.
- Forgetting that pan size and cooking time may change with batch size.
- Rounding small ingredients too aggressively.
- Entering target servings as zero or a negative number.
Transparency note
Accuracy and limitations
Calzivo tools are built for practical estimates, conversions, and checks. Some tools use standard formulas or simplified assumptions, and results can be affected by input accuracy, rounding, units, local rules, or changing official requirements.
Results depend on the values you enter and any simplified assumptions used by the tool. Verify important results before making decisions or submitting official information.
How to Use This Tool
Use these steps to enter the right inputs and interpret the result correctly.
Enter the number of servings the original recipe makes.
Enter the number of servings you want to make.
Enter the amount of any ingredient from the original recipe.
The tool will show you the new amount for that ingredient.
Related Tools
Other helpful tools in the Cooking Calculators category.
Related Guides
Background reading and explanations related to Recipe Scaler.
Frequently Asked Questions
Common questions about Recipe Scaler and how to read the result.
Do all ingredients scale linearly?
Most do, but be careful with spices, leavening agents (like baking powder), and salt, as they often don't need to be scaled exactly by the same ratio.
How do I scale a recipe from 4 to 6 servings?
Divide 6 by 4 to get 1.5, then multiply each ingredient by 1.5.
Can I enter any ingredient unit?
Yes. Enter the number from your recipe, then keep the same unit in the scaled result.
Does cooking time scale too?
Not always. Cooking time depends on pan size, food thickness, oven behavior, and recipe type.
Should baking recipes be scaled carefully?
Yes. Baking can be sensitive to leavening, pan size, mixing, and temperature.
Why did I get a decimal result?
The exact scaled amount may not be a neat fraction. Round only as much as the recipe can tolerate.