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Recipe Scaler

Scale every ingredient in a recipe up or down to a new number of servings.

Results

Scaled recipe
Scale factor
1.500×

📊 Recipe Scaler chart

Character composition of the result: letters, digits, spaces, punctuation and other symbols.

What is the Recipe Scaler?

Scale every ingredient in a recipe up or down to a new number of servings. Scaling multiplies every ingredient by the same factor, so a dish keeps its balance whether you cook for two or twenty.

Recipe Scaler – free online everyday tool illustration
Recipe Scaler — free, exact and private.

How to use the Recipe Scaler

  1. Enter your original servings, your new servings, your ingredients.
  2. Results update automatically as you type; you can also press Calculate.
  3. Read the output: scaled recipe, scale factor.
  4. Use the 📊 chart to see the result visually, then copy or share it.

Formula and method

Each quantity × (new servings ÷ original servings)

Worked example

With original servings = 4, new servings = 6, the Recipe Scaler returns scale factor: 1.500×.

Where the Recipe Scaler helps in real life

Your chili recipe serves four and you are feeding twelve at a party. The scaler triples every ingredient instantly, so you only have to shop and cook.

You live alone and want half a batch of muffins. Halving the recipe avoids waste without guessing at amounts like half an egg.

Common mistakes to avoid

  • Scaling salt and spices fully without tasting first.
  • Using the same pan size for a much larger batch.
  • Keeping the original cooking time for a doubled recipe.
  • Rounding tiny amounts to zero.

💡 Practical tip: Large batches often need longer cooking or baking, even when every ingredient scales perfectly.

Illustration: a café table with a receipt, a coffee and a phone showing a chart
Recipe Scaler in everyday work — illustration.

Tips for better results

  • Add strong spices gradually and taste as you go.
  • Weigh ingredients for accuracy when scaling large batches.
  • Check doneness early and often when batch size changes.

Frequently asked questions

What does the Recipe Scaler do?

Scale every ingredient in a recipe up or down to a new number of servings.

How is it calculated?

The Recipe Scaler uses this method: Each quantity × (new servings ÷ original servings).

Can you show an example?

With original servings = 4, new servings = 6, the Recipe Scaler returns scale factor: 1.500×.

Is the Recipe Scaler accurate?

Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.

Is this tool free and private?

Yes — the Recipe Scaler is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.

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