Recipe Scaler

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

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 Measurement Converter

Convert cooking measurements: cups, tablespoons, ounces, grams, and temperature.

Meat Cooking Time Calculator

Calculate cooking times for beef, pork, chicken, turkey. Get internal temps for perfect doneness.

Baking Ratio Calculator

Calculate ingredient weights using baker's percentages for bread, cake, cookies, and more.

Percentage Calculator

Calculate percentages instantly. Find what percent of a number is, percentage increase/decrease, and more.

Fraction Calculator

Add, subtract, multiply, and divide fractions. Get results as simplified fractions, mixed numbers, and decimals.

Equivalent Fractions Calculator

Find equivalent fractions for any proper, improper, or mixed fraction. Shows the first 100 equivalent fractions.

Frequently Asked Questions

How do I scale a recipe up or down?

Divide target servings by original servings to get the multiplier. Multiply each ingredient by this number. Example: 8 servings ÷ 4 servings = 2× multiplier.

Do all ingredients scale equally?

Most do, but some don't. Salt, spices, leavening agents (baking powder/soda), and yeast often need adjustment. When doubling, try 1.5× for these.

Can I scale baking recipes?

Baking is more precise than cooking. Small changes (1.5× or 2×) usually work. Larger changes may need pan size and timing adjustments.

How do I convert between cups and grams?

Conversions vary by ingredient. Flour: 1 cup ≈ 120g. Sugar: 1 cup ≈ 200g. Butter: 1 cup ≈ 227g. For precision, use a kitchen scale.

What about cooking time when scaling?

Cooking time doesn't scale linearly. Larger batches may need slightly longer cooking, but not proportionally. Check for doneness rather than relying on time alone.