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Recipe Multiplier / Divider — Scale Ingredients by Servings

×2.00
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Never Guess Ingredient Amounts Again

Cooking for a crowd or cutting a recipe in half? Paste your ingredient list, set the original and desired servings, and the calculator instantly recalculates every amount. Supports fractions, decimals, metric, and imperial units.

Common Uses

  • Doubling or tripling: Hosting a party? Scale up without mental math errors.
  • Halving: Cooking for one or two? Cut the recipe down precisely.
  • Odd portions: Need 7 servings from a recipe that serves 4? The multiplier handles it.
  • Baking precision: Baking ratios matter — let the calculator do the math.

Frequently Asked Questions

What ingredient formats are supported?
The calculator recognizes amounts at the beginning or end of a line, including whole numbers (2), decimals (1.5), and fractions (1/2, 1 1/2). Common units like cup, tbsp, tsp, g, kg, ml, oz, and lb are also detected. Items without a recognizable amount are displayed but not scaled.
Can I use fractions like 1/3 cup?
Yes! Fractions (1/2, 1/3, 2/3, 3/4) and mixed fractions (1 1/2) are fully supported. The calculator will display results as fractions when they match common cooking fractions (1/4, 1/3, 1/2, 2/3, 3/4), or as decimals otherwise.
How does the multiplier work with servings?
The multiplier is automatically calculated as desired servings divided by original servings. For example, scaling from 4 servings to 8 gives a ×2.00 multiplier. You can also use the quick buttons (×0.5, ×1, ×2, ×3, ×4) to set common scaling ratios instantly.
Is my recipe data stored or shared?
No. Everything runs locally in your browser. The ingredients you type are never sent to any server — your recipe stays completely private.
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