What is Recipe Scaler?

Recipe Scaler helps you adjust ingredient quantities when cooking for more or fewer people. Whether you're doubling a recipe for a party or halving it for a solo meal, this tool recalculates every ingredient instantly.

Instead of doing mental math with fractions and odd measurements, simply enter your original servings and desired servings — the tool handles the rest, displaying results as easy-to-read fractions like ½, ⅓, and ¾.

Who Is This For?

Home Cooks

Adjusting family recipes for different group sizes

Bakers

Precise ingredient ratios when scaling up or down

Meal Preppers

Calculating bulk ingredient quantities

Party Hosts

Multiplying recipes for large gatherings

How to Use Recipe Scaler

Set Servings

Enter the original serving count from your recipe (e.g., 4 servings). Then enter your desired serving count (e.g., 8 servings). The scale factor updates automatically.

For common scaling, use the quick buttons: ½x, 2x, 3x, or 4x.

Add Ingredients

For each ingredient, enter:

Name — the ingredient name (e.g., "Flour")
Quantity — amount in numbers, decimals, or fractions (e.g., "2", "0.5", "1/2", "1 1/2")
Unit — select from 30+ measurement units (cups, tbsp, grams, etc.)

Paste from a Recipe

Click the Paste button and paste your ingredient list directly. The tool automatically parses lines like:

"2 cups flour"
"1/2 tsp salt"
"3 eggs"
"1½ cups sugar"

View Scaled Results

The Scaled column shows adjusted quantities in friendly fractions. When the scale factor differs from 1x, scaled values are highlighted in green for easy reading.

Save and Reuse

Click Save Recipe to store your ingredient list with a custom name. Saved recipes appear in the collapsible panel below and persist across sessions. Click any saved recipe to reload it instantly.

Pro Tip: Copy the scaled ingredient list to your clipboard with one click, ready to paste into notes, messages, or shopping lists.

Features

Smart Fraction Display

Scaled quantities are shown as readable fractions (½, ⅓, ¼, ¾, ⅛) instead of awkward decimals like 0.333. This makes it easy to measure with standard kitchen tools.

Intelligent Rounding

The tool rounds quantities to practical cooking amounts. Small values get more precision (⅛ increments), while larger values round to halves or whole numbers — matching how recipes are actually used in the kitchen.

Flexible Input

Enter quantities as whole numbers (2), decimals (0.5), simple fractions (1/2), or mixed fractions (1 1/2). The tool understands all these formats.

Paste & Auto-Parse

Copy an ingredient list from any recipe website and paste it directly into the tool. It recognizes common formats including bulleted lists, numbered lists, and various unit abbreviations.

Cups, tbsp, oz, g, kg, ml
Unicode fractions (½, ¼)
Bulleted & numbered lists

30+ Measurement Units

Supports volume units, weight units, and count units for complete recipe flexibility.

Volume: cup, tbsp, tsp, ml, l, fl oz, pint, quart, gallon
Weight: g, kg, oz, lb
Count: piece, dozen, pinch, dash, clove, bunch, can, slice

Save Recipes Locally

Save up to 20 recipes with custom names in your browser. Load any saved recipe with one click to quickly rescale it for different occasions.

Copy to Clipboard: Copy the scaled ingredient list as formatted text, ready to paste into notes, messages, or shopping lists.

Frequently Asked Questions

Can I paste ingredients from a recipe website?

Yes. Click the Paste button and paste your ingredient list. The tool parses common formats including "2 cups flour", "1/2 tsp salt", bulleted lists, and numbered lists. It also understands unicode fractions like ½ and ¼.

How does fraction display work?

When a scaled quantity matches a common fraction (½, ⅓, ¼, ⅔, ¾, ⅛), it displays the fraction symbol instead of a decimal. For example, 0.5 shows as ½ and 0.333 shows as ⅓. Values that don't match a common fraction are rounded to 2 decimal places.

What units are supported?

Over 30 units are available, including:

Volume: cups, tablespoons (tbsp), teaspoons (tsp), milliliters (ml), liters (l), fluid ounces, pints, quarts, gallons
Weight: ounces (oz), pounds (lb), grams (g), kilograms (kg)
Count: pieces, dozen, pinch, dash, cloves, slices, bunch, can, and more

Where are my saved recipes stored?

Saved recipes are stored in your browser's local storage. They persist across sessions but are specific to the browser and device you're using. Clearing your browser data will remove saved recipes.

Is there a limit to how many recipes I can save?

You can save up to 20 recipes. When the limit is reached, saving a new recipe removes the oldest one automatically.

Is my data private?

Yes. All calculations happen entirely in your browser. No ingredient data or recipes are sent to any server.