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Food & Catering

Recipe scaling calculator

Scaling a recipe should be simple: divide the servings you want by the servings you have, then multiply each ingredient by that factor. Snap a photo of any recipe — a cookbook page, a handwritten card, a screenshot — and the scanner reads it and fills the list in for you, then you pick the new serving count. You can also add the ingredients by hand. The calculator does the arithmetic and formats common results as useful fractions so your shopping list stays readable. For baking, use the result as a starting point and remember that pan size, oven time, and leavening often need their own judgment.

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Scan a recipe photo

Snap the recipe — cookbook page, handwritten card, or screenshot — and AI reads the ingredients into the list below.

Ingredients

Your estimate

Results

Planning estimate
Scale factor2
Scaled ingredients0
Baking noteFor baking, scale pan size and time carefully; doubling a recipe rarely means doubling bake time.

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Digital kitchen scaleScaled amounts read cleanest when you measure in grams.As an Amazon Associate, CalcForged earns from qualifying purchases.

The math, plainly

How it works

  1. 01

    The scale factor is new servings divided by original servings.

  2. 02

    Each ingredient amount is multiplied by that factor, while units and ingredient names stay the same.

  3. 03

    Cooking time and pan size do not always scale linearly, especially for baking; use the note as a prompt to check the recipe.

Try a real scenario

4 servings to 8

InputsOriginal 4 servings, new 8 servings

ResultA 2× scale factor. A 1/2 cup ingredient becomes 1 cup.

Gear for the job

Tools & materials people actually buy

As an Amazon Associate, CalcForged earns from qualifying purchases made through these links.

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