Conversions cup→g

Cups to Grams Converter

Turn cups and spoons into grams and ounces for more than 100 baking ingredients, or paste a whole recipe and get every line by weight. A cup of flour and a cup of sugar weigh very different amounts, so this converter uses each ingredient's own weight.

How to use it

  1. Pick the ingredient and type the amount, or tap a quick amount like ⅓ or ¾ cup.
  2. Choose the unit you have: cups, spoons, milliliters, grams, ounces or pieces such as eggs and sticks of butter.
  3. Read the weight and the kitchen measures, or switch to A whole recipe, paste your list and copy it back in grams.

How it works

Volume and weight are linked by density, and every ingredient packs differently. A cup of all-purpose flour weighs 120 g; a cup of granulated sugar weighs 198 g; a cup of brown sugar, packed, 213 g.

Dry and soft ingredients use King Arthur Baking's ingredient weight chart, the reference most American recipe writers use. Liquids and fats use their measured densities, so a US cup (236.6 mL) of water is 237 g and of milk 244 g.

In recipe mode, the tool reads each line, finds the amount, the unit and the ingredient, and converts it. Lines it can't weigh stay as written so nothing is lost.

Assumptions and limits

  • Flour is spooned into the cup and leveled, not scooped from the bag, which packs in up to 25% more.
  • Brown sugar is firmly packed; confectioners' sugar is spooned in unsifted.
  • Ingredient densities vary by brand and humidity by a few percent; weigh when a recipe is critical.

Tips

  • Set your scale to zero with the bowl on it and weigh each ingredient straight in: fewer cups to wash.
  • For small amounts of leaveners and salt, measuring spoons are more accurate than most kitchen scales.
  • Copy the converted recipe and keep it: grams make doubling or halving trivial next time.

Recipes to try it with

Questions

How many grams are in a cup of flour?

120 grams of all-purpose flour, spooned and leveled. Bread flour and cake flour are also about 120 g; whole wheat is about 113 g.

How many grams is a cup of sugar?

198 grams of granulated sugar. Packed brown sugar is 213 g per cup and confectioners' sugar about 113 g.

Why do my recipes give different gram weights for a cup?

Writers measure differently: some scoop, some spoon, some use 125 g or 130 g for flour. If a recipe lists grams, use its grams; this tool gives the standard spooned weight.

Is a US cup the same as a metric cup?

No. A US cup is 236.6 mL; a metric cup (Australia, Canada) is 250 mL. This converter uses US cups.