Free Kitchen Tool

Scale Any Recipe Instantly

Paste your ingredients below or select from our global recipe menu card. Scale by multiplier, limiting ingredient, or servings.

Select Multiplier
Or custom factor:

Scaled Results Will Appear Here

Paste ingredients or select a recipe from the menu card to scale live.

Three steps. Zero friction.

From paste to scaled recipe in under 5 seconds. No formatting required.

Paste your ingredients

Copy any ingredient list — straight from a food blog, recipe card, or notes app. Messy formatting, mixed fractions, weird abbreviations — it handles it all.

ingredients.txt
2 cups all-purpose flour
1 1/2 tsp baking powder
1/4 cup unsalted butter, softened
3/4 cup granulated sugar
2 large eggs
1 cup whole milk

Choose your scale

Hit a quick multiplier (½×, 2×, 3×), enter a custom number like 1.75×, specify servings, or let us calculate from a single limiting ingredient.

settings
Mode: Standard
Multiplier: 2×
Output: Fractions

Get perfect results

Scaled ingredients appear instantly, formatted as clean fractions or decimals. Copy to clipboard or print a recipe card — all without creating an account.

output.txt
4 cups all-purpose flour
3 tsp baking powder
½ cup unsalted butter, softened
1½ cups granulated sugar
4 large eggs
2 cups whole milk

Built to beat every competitor.

Other tools force manual data entry, charge subscriptions, or crash on messy text. We don't.

Zero friction

Smart Paste NLP Engine

Paste raw, messy recipe text straight from any food blog. Our regex engine automatically parses quantities, units, and ingredient names — no manual formatting needed.

Kitchen Math

Smart Fraction & Spoon Hints

Outputs clean fractions (1½ cups) and automatically converts tricky quantities like ⅜ cup into practical spoon measures (6 tbsp) right in your recipe output.

Intuitive

3 Distinct Scaling Modes

Scale by a multiplier (2×, 0.5×), by servings (4→6 people), or by a limiting ingredient (I only have 2 eggs). Distinct color-coded modes make switching effortless.

Baking Helper

Interactive Kitchen Checklist

Tap or click any ingredient in your scaled recipe as you cook to cross it off. Never double-add sugar or forget salt again.

Screen awake

Cook Mode Wakelock

Activate Cook Mode to keep your phone or tablet screen awake while cooking. Uses the Screen Wake Lock API — zero messy-finger screen taps required.

Instant export

Instant Export & Print

One-click copy your formatted or plain text recipe to clipboard, or generate a print-ready recipe card. Free, fast, and completely private.

Common questions.

The complete guide to scaling recipes.

What is a recipe scaler?

A recipe scaler is a tool that multiplies or divides every ingredient in a recipe by a factor you specify. Instead of manually recalculating "what is 3/4 of 1½ cups?" for every line of a recipe, a scaler does the arithmetic instantly and outputs the result in clean, readable form.

Our free recipe scaler handles every edge case: mixed fractions (1 1/2 cups), Unicode fractions (½ cup), decimals (1.5 oz), and plain integers (3 eggs). It parses raw ingredient text without requiring any manual formatting — just paste and scale.

How to double a recipe

To double a recipe, multiply every ingredient quantity by 2. So "1½ cups flour" becomes "3 cups flour," "2 large eggs" becomes "4 large eggs," and "¾ teaspoon salt" becomes "1½ teaspoons salt."

The only exception is cooking time and temperature — these don't scale linearly. A doubled cake doesn't bake in double the time. Always check a recipe's visual doneness cues rather than relying solely on scaled timing.

How to halve a recipe

Halving a recipe means multiplying every ingredient by 0.5 (or dividing by 2). "2 cups milk" becomes "1 cup milk." "3 eggs" becomes "1½ eggs" — in practice, you would use 1 large egg plus 1 tablespoon of beaten egg, or a medium egg.

Halving baking recipes requires particular attention to leavening agents. If you halve a recipe with 1 teaspoon of baking powder, the result is ½ teaspoon — not the rounded "a pinch." Use our fraction output mode for precision.

Scale baking recipes by weight

Volume measurements (cups, tablespoons) introduce error in baking because ingredient density varies dramatically. A cup of loosely spooned flour weighs around 120–130 grams; a packed cup can weigh 160+ grams. For professional baking precision, weigh all ingredients in grams.

Use our Target Ingredient mode to scale by a specific gram weight. If a recipe calls for 200g flour and you only have 150g, enter "flour" and "150g" — we recalculate the entire recipe proportionally: x_new = x_old × (150 ÷ 200).

Scaling for servings

To convert a recipe from 4 servings to 6, calculate the multiplier: 6 ÷ 4 = 1.5. Then scale every ingredient by 1.5. Our Servings tab does this automatically — enter your original and target serving count and we handle the math.

For large batch cooking — scaling a dinner recipe from 4 to 20 servings — pay attention to salt, spices, and aromatics. These often don't scale linearly; many experienced cooks recommend scaling salt and spices to about 60–80% of the mathematical result and adjusting to taste.

Fractional math in cooking

American home cooking recipes rely heavily on fractions: ¼ cup, ½ teaspoon, ⅓ cup. When scaled, these can produce awkward results. A 1.75× multiplier applied to "⅓ cup" yields 0.583 cups — which is neither a standard fraction nor intuitive.

Our scaler automatically finds the nearest clean fraction (in this case, ½ cup + 1 tablespoon, or simply rounding to ⅔ cup depending on precision required). Toggle the Decimal mode if you prefer exact numeric output for professional kitchen use.

Pro tips
  • Eggs are tricky to halve: For 1.5 eggs, beat one egg thoroughly and use 60% of it (about 1 tablespoon + 2 teaspoons of the beaten egg).
  • Salt and spice scaling: When scaling up more than 2×, start spices at 75% of the calculated amount and adjust to taste.
  • Baking powder precision: Use level teaspoon measurements, not heaping ones. Baking reactions are sensitive to leavening ratios.
  • Pan size matters: Doubling a recipe often requires a larger pan or two separate pans. A doubled batter in the same pan will overflow or not bake correctly.
  • Cook Mode: Activate Cook Mode to prevent your phone screen from locking mid-recipe — especially useful when your hands are covered in dough.

Start scaling your recipe now.

No account. No subscription. Just paste and scale.