Recipe Converter and Scaler

Double a recipe, cut it in half, or scale it to any number of servings. Convert cups, ounces and °F to metric, or back. Paste your ingredients and get the new amounts in one step.

One ingredient per line. Oven temperatures work too.

2. Change the servings
3. Choose units

Your converted recipe

6 lines changed

  • 270 g all-purpose flour
  • 1 tsp baking soda
  • 1/2 tsp salt
  • 226 g butter, softened
  • 149 g granulated sugar
  • 160 g packed brown sugar
  • 2 large eggs
  • 2 tsp vanilla extract
  • 340 g chocolate chips
  • Bake at 190°C for 9 to 11 minutes.

In Metric, cups of flour, sugar, butter, oats, cocoa and chocolate chips become grams, using the cups to grams chart below. Liquids and other ingredients become milliliters.

Also on the web at my.recipenotes.app · Updated November 2026

How to scale and convert a recipe

  1. 1

    Paste the ingredients

    Copy the ingredient list from any recipe and paste it into the box, one ingredient per line.

  2. 2

    Set the servings

    Enter how many servings the recipe makes and how many you want, or tap ½×, 1.5×, 2×, 3× or 4×.

  3. 3

    Choose units

    Keep the original units, or convert everything to metric (g, ml, °C) or US (cups, oz, °F).

  4. 4

    Copy the result

    Changed lines are highlighted. Tap Copy to take the new list to your notes or recipe app.

How to double or halve a recipe

To double a recipe, multiply every amount by 2. To cut a recipe in half, divide every amount by 2. The hard part is measuring the result: half of ¾ cup is 6 tablespoons, and half of ⅓ cup is 2 tablespoons plus 2 teaspoons.

This chart gives amounts you can measure with standard cups and spoons. The converter above rounds the same way.

Halving and doubling measures
Recipe saysHalfDouble
1 cup½ cup2 cups
¾ cup6 tbsp1½ cups
⅔ cup⅓ cup1⅓ cups
½ cup¼ cup1 cup
⅓ cup2 tbsp + 2 tsp⅔ cup
¼ cup2 tbsp½ cup
1 tbsp1½ tsp2 tbsp
1 tsp½ tsp2 tsp
½ tsp¼ tsp1 tsp
¼ tsp⅛ tsp½ tsp

What to adjust by hand

Math scales the amounts. A few things still need a cook’s judgment when you make a much bigger or smaller batch.

Eggs

Half an egg is hard to measure. Beat one egg, then use half of it. Or round to the nearest whole egg when the recipe is forgiving, like pancakes or meatballs.

Pan size and baking time

When you double a cake or brownies, bake in two pans of the original size. The time stays close to the original. One larger, deeper pan needs a different time, so check it early and often.

Salt, spices and heat

Scale them, then add the last part only after you taste. Strong flavors like chili, garlic and salt can feel stronger in a bigger batch.

Liquid in soups and stews

A wider pot loses more liquid while it simmers. Keep some broth or water ready and add it if the pot looks dry.

Cooking conversion chart

A kitchen conversion chart for US and metric measures. The converter uses the same values: 1 cup is 240 ml and 1 ounce is 28.35 g. The chart shows exact amounts; the converter rounds larger results to the nearest 5 g or 10 ml. Oven temperatures are rounded to the nearest 5 degrees.

Cups and spoons to milliliters
US measureMetric
1 teaspoon (tsp)5 ml
1 tablespoon (tbsp)15 ml
¼ cup60 ml
⅓ cup80 ml
½ cup120 ml
⅔ cup160 ml
¾ cup180 ml
1 cup240 ml
1 pint (2 cups)473 ml
1 quart (4 cups)946 ml
1 gallon (16 cups)3.8 L
Spoons and cups
This muchEquals
3 teaspoons1 tablespoon
2 tablespoons1 fluid ounce (⅛ cup)
4 tablespoons¼ cup
8 tablespoons½ cup
16 tablespoons1 cup
2 cups1 pint
4 cups1 quart
Ounces and pounds to grams
US weightMetric
1 oz28 g
4 oz (¼ lb)113 g
8 oz (½ lb)227 g
12 oz (¾ lb)340 g
16 oz (1 lb)454 g
2 lb907 g
Oven temperatures
FahrenheitCelsius
250°F120°C
275°F135°C
300°F150°C
325°F165°C
350°F175°C
375°F190°C
400°F205°C
425°F220°C
450°F230°C
475°F245°C

Cups to grams for baking staples

In Metric, the converter turns cups of these ingredients into grams. A cup of flour and a cup of sugar weigh different amounts, so each ingredient has its own number.

For more ingredients, grams to cups, and why different charts disagree, use the cups to grams converter.

Weights per US cup from the King Arthur Baking ingredient weight chart, checked on November 9, 2026.

1 cup in grams
Ingredient1 cup
Almond flour96 g
Whole wheat flour113 g
All-purpose flour120 g
Cornstarch112 g
Brown sugar, packed213 g
Confectioners' (powdered) sugar113 g
Granulated sugar198 g
Butter226 g
Rolled oats89 g
Cocoa powder, unsweetened84 g
Chocolate chips170 g

Keep your converted recipes in one place

Recipe Notes saves recipes from websites, TikTok, Instagram, Pinterest and YouTube into one collection on iPhone, Android and the web. You can set it to convert every recipe you import to metric, US or imperial units, so you do not have to convert each one by hand.

Set the measurement units for importsSee the free cookbook app

Related guides

Frequently asked questions

How many milliliters are in a cup?

This converter uses 240 ml, the US cup used on nutrition labels. A US customary cup is 236.6 ml, so the difference is under 2%. Australian, New Zealand and Canadian recipes often use a 250 ml metric cup. Older British recipes may use an imperial cup of about 284 ml.

What is half of ⅓ cup?

Half of ⅓ cup is 2 tablespoons plus 2 teaspoons. Half of ¾ cup is 6 tablespoons, and half of ¼ cup is 2 tablespoons. The halving chart on this page lists the other common measures.

Does a doubled recipe take twice as long to bake?

No. If you bake the doubled batter in two pans of the original size, the time stays close to the original. In one larger, deeper pan it takes longer, so check early and use the doneness test in the recipe.

How many tablespoons are in a cup?

16 tablespoons are in 1 cup, and 3 teaspoons are in 1 tablespoon. So ¼ cup is 4 tablespoons and ⅓ cup is 5 tablespoons plus 1 teaspoon.

Why do some cups turn into grams and others into milliliters?

A cup measures volume, and what it weighs depends on the ingredient. For flour, sugar, brown sugar, powdered sugar, butter, rolled oats, cocoa, chocolate chips, almond flour and cornstarch, the converter uses the weights in the chart on this page, so 1 cup of all-purpose flour becomes 120 g. Liquids and other ingredients convert to milliliters.

Does it convert oven temperatures?

Yes. Paste a line such as “Bake at 350°F” and choose Metric, or paste “180°C” and choose US. Temperatures are rounded to the nearest 5 degrees, because most ovens are set in steps of 5 or 10.

What does “Keep units” do?

It only scales the amounts. Units change only when a result passes a natural step, for example 3 teaspoons become 1 tablespoon and 16 ounces become 1 pound.

Is my recipe sent anywhere?

No. The converter runs in your browser. The ingredients you paste are not uploaded or saved.

Which ingredient lines can it read?

Lines that start with an amount, such as “2 cups flour”, “1 1/2 tsp salt”, “½ cup milk” or “2-3 cloves garlic”. Lines without an amount at the start, like “salt to taste”, stay as they are.