2 cups for 4 servings
- Ingredient
- Flour
- Scale factor
- 2.5x
- Desired servings
- 10
Spices, yeast, thickener, salt, pan size, and cooking time may not scale perfectly. Taste and texture still need judgment.
Recipe Scaler
Use this free recipe scaler to resize ingredient amounts from the original serving count to a smaller or larger batch.
Research-backed assumptions Formula steps Examples included Private in-browser use
Formula steps
- Divide desired servings by original servings to get the scale factor.
- Multiply the ingredient amount by that scale factor.
- Repeat the same idea for each ingredient line in the recipe.
How to use the recipe scaler
- Enter the requested dates, times, grades, dimensions, network values, password options, or units.
- Check the assumptions shown on the page, especially school scales, payroll rules, concrete waste, subnet type, or security handling.
- Press the calculate button to see the answer, supporting metrics, and formula steps.
- Use examples, recent answers, or copy the result while keeping the estimate limits in mind.
Common uses
Resize a recipe from 4 servings to 10 servings.
Make a half batch when you do not need the full recipe.
Scale party trays, meal prep, or bake sale batches one ingredient line at a time.
Show the scale factor so the recipe math is easy to audit.
Examples
5 cups flour
150 g sugar
7.5 eggs before rounding
Frequently asked questions
Plain-language answers about when to use the tool, what it does with your inputs, what to double-check, and how privacy works.
When should I use the Recipe Scaler?
Use it when your task matches one of these common needs: Resize a recipe from 4 servings to 10 servings. Make a half batch when you do not need the full recipe. It works best when you already know the values, dates, units, or settings the page asks for.
What is the Recipe Scaler doing with my inputs?
In plain language: The scaler divides desired servings by original servings to get a scale factor, then multiplies the ingredient amount by that factor. The examples on the page are there so you can compare your inputs with a filled-out calculation before copying the answer.
What do the main Recipe Scaler inputs mean?
Original servings: How many servings the recipe normally makes. Desired servings: How many servings you want to make now. Original amount: The amount from one ingredient line in the recipe.
How should I read the Recipe Scaler answer?
Read the main answer first, then check the supporting lines and examples to understand how the calculator got there. If one input changes, rerun the tool and compare the new answer instead of guessing.
What should I double-check before trusting the answer?
Ingredient math scales cleanly, but flavor, salt, spices, yeast, thickener, pan size, and cook time may need real kitchen judgment. Also check that you used the right unit, date, scale, or mode because small input changes can change the result.
Why does the tool scale one ingredient at a time?
It keeps the math easy to check. Enter each important ingredient line from the recipe, copy the scaled amount, then repeat for the next line. This avoids hiding mistakes in a giant pasted recipe table.
Do seasonings scale perfectly?
Not always. Salt, hot spices, yeast, gelatin, thickeners, and extracts can taste too strong or behave differently when scaled. Use the answer as a starting point and adjust carefully.
Does the site save what I enter?
No. The calculator runs in your browser tab. Your recent answers stay only on the page while you use it, and they are not sent to a server.
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