Recipe Scaler

Scale any recipe up or down. Enter your ingredients, set the target servings, get exact quantities instantly.

Scale Your Recipe

Paste or type your ingredients (one per line). Format: amount unit ingredient.

Free & Private
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How Recipe Scaling Works

Recipe scaling multiplies each ingredient quantity by the ratio of target servings to original servings. A recipe for 4 scaled to 8 servings doubles every ingredient.

Tips for accurate scaling

  • Baking recipes — scale carefully. Leavening agents (baking powder, yeast) don't always scale linearly above 2x. For 3x+ batches, consider baking in separate batches.
  • Spices and salt — scale at 75% for recipes above 2x. Spice intensity compounds nonlinearly.
  • Cooking time — scaling up doesn't proportionally increase cook time. Larger volumes need ~10-15% more time, not 2x.
  • Pan size — doubling a recipe requires a pan with ~40% more surface area, not double (area scales by the square root).

Supported formats

The scaler handles these ingredient formats:

  • 2 cups flour — whole numbers
  • 1/2 cup sugar — fractions
  • 1.5 tsp vanilla — decimals
  • 250g butter — metric (number directly attached to unit)
  • 3 large eggs — count items