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Recipe Scaler

Scale recipes up or down for any number of servings. Enter ingredients and get instant conversions with easy-to-read measurements.

Recipe Worksheet

Tips:

  • Enter ingredients like "2 cups flour" or "1/2 tsp salt"
  • Fractions (1/2, 3/4) are supported
  • Some ingredients don't scale linearly (e.g., salt, yeast, baking powder)

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How to Scale Recipes

Scaling a recipe is simple math: divide the target servings by the original servings, then multiply each ingredient by that number.

Example

A recipe makes 4 servings, but you need 6:

  • Multiplier: 6 ÷ 4 = 1.5
  • If recipe calls for 2 cups flour: 2 × 1.5 = 3 cups
  • If recipe calls for 1 tsp salt: 1 × 1.5 = 1.5 tsp

Ingredients That Don't Scale Linearly

Some ingredients need special attention when scaling:

Scale Conservatively (use ~1.5× when doubling)

  • Salt and spices: Flavors concentrate differently at larger volumes
  • Garlic and onion: Strong flavors can overpower when doubled
  • Leavening agents: Too much baking powder/soda can cause collapse or metallic taste
  • Yeast: Excess yeast creates off-flavors and unstable rise

Scale Exactly

  • Flour and sugar: These are structural and should scale precisely
  • Eggs: Scale precisely (may need to adjust by half eggs)
  • Main proteins: Meat, fish, beans scale directly
  • Liquid base: Stock, milk, water for soups and stews

Tips for Successful Scaling

  • Use weight, not volume: Weighing ingredients (grams) is more accurate than cups
  • Adjust pan size: Larger batches may need bigger pans to maintain proper cooking
  • Watch cooking time: Larger quantities may need more time; smaller may need less
  • Taste as you go: Especially for seasonings, taste and adjust
  • Take notes: Record what worked for future reference

Cooking Time Adjustments

Cooking time does not scale linearly with recipe size. A doubled batch doesn't take twice as long. Guidelines:

  • Stovetop: Doubling may add 25-50% more time if the pan is deeper/fuller
  • Oven baking: Same temperature, but add 10-25% time for doubled batches. Check for doneness early
  • Splitting into two pans: Keeps time similar to original. Rotate pans halfway through
  • Halving a recipe: Reduce time by 25% and check early

Common Measurement Conversions

  • 3 teaspoons = 1 tablespoon
  • 4 tablespoons = 1/4 cup
  • 16 tablespoons = 1 cup
  • 2 cups = 1 pint
  • 4 cups = 1 quart
  • 1 cup flour ≈ 120g
  • 1 cup sugar ≈ 200g
  • 1 cup butter ≈ 227g (2 sticks)

Related Calculators

Cooking Conversion Calculator — Cups, Tbsp, g, °F/°C Convert cooking measurements: cups, tablespoons, ounces, grams, and oven temperature between °F and °C. Meat Cooking Time Calculator — Roast, Grill, Slow Calculate cooking times by method (oven, grill, slow cook) with rest time and carryover guidance. Includes a per-pound roasting chart and USDA safe internal temperatures for beef, pork, chicken, turkey, and lamb. Baking Ratio Calculator — Baker's % for Bread, Cake Calculate ingredient weights using baker's percentages for bread, cake, cookies, and more. Percentage Calculator — 7 Modes, Step-by-Step Work Calculate percentages 7 ways: find percent, find whole, percent change, percent difference, add/subtract percent, and reverse percent. Fraction Calculator — Step-by-Step Solver Add, subtract, multiply, divide, compare, and solve fractions with full step-by-step work. Chain up to 9 fractions, mixed numbers, simplify, and decimal conversions. Equivalent Fractions Calculator — First 100 Results Find equivalent fractions for any proper, improper, or mixed fraction. Shows the first 100 equivalent fractions instantly.

On conv.awajis.com

Cups of Butter to Sticks Butter measure conversions.

Frequently Asked Questions

How do I scale a recipe up or down?

Divide the servings you want by the servings the recipe makes, then multiply every ingredient by that number. Going from 4 servings to 8 gives a multiplier of 2, and going from 12 to 9 gives 0.75, so 2 cups of flour becomes 1.5 cups. Check pan size and cooking time separately, since neither scales in a straight line.

Do all ingredients scale equally when doubling a recipe?

No. Most ingredients double cleanly, but salt, strong spices, baking powder, baking soda and yeast often need less. When doubling, start these at about 1.5 times the original amount and adjust to taste. For batches larger than 3 times the original, start salt at 2.5 times and season at the end.

How do I halve a recipe with an odd number of eggs?

Beat the whole egg until uniform, then measure out half by weight or volume. A large egg weighs about 50 g, so half an egg is 25 g, or roughly 1.5 tablespoons. Use that measured amount in the halved recipe and keep the rest for another use, such as an egg wash.

Does cooking time change when you double a recipe?

Cooking time does not double when a recipe doubles. A larger batch usually needs somewhat longer, but not twice as long, and a deeper pan slows cooking more than a wider one. Start checking for doneness at the original time and use a thermometer or a toothpick test rather than a scaled clock.