Cups to Grams Converter (Cups, Tablespoons & Teaspoons to Weight)

Free tool that converts cups, tablespoons, and teaspoons from overseas recipes into grams based on each ingredient's density. Supports 16 common baking ingredients such as flour, sugar, and butter, plus grams-to-cups conversion.

Cups to Grams Conversion Chart by Ingredient

Ingredient 1 cup (g) 1 tbsp (g) 1 tsp (g)
All-purpose flour 120 7.5 2.5
Bread flour 127 7.9 2.6
Cake flour 114 7.1 2.4
Granulated sugar 200 12.5 4.2
Brown sugar (packed) 213 13.3 4.4
Powdered (confectioners') sugar 113 7.1 2.4
Butter 227 14.2 4.7
Milk 242 15.1 5.0
Water 237 14.8 4.9
Honey 340 21.3 7.1
Vegetable oil 218 13.6 4.5
Rolled oats 85 5.3 1.8
Uncooked white rice 185 11.6 3.9
Cocoa powder 84 5.3 1.8
Cornstarch 128 8.0 2.7
Table salt 288 18.0 6.0

Based on the US measuring cup (1 cup = 236.6 mL), spooned and leveled. Actual weight can vary slightly depending on how the ingredient is scooped and packed.

What Is a Cups to Grams Converter?

A cups to grams converter is a free calculator that turns the volume measurements common in overseas recipes, such as "1 cup" or "2 tablespoons," into the gram weights that are easier to measure precisely at home. It supports 16 common baking ingredients, including flour, sugar, butter, milk, and honey, and calculates the exact weight based on each ingredient's density (its weight per cup).

For liquids like water or alcohol, a generic unit converter can give a rough estimate by treating 1 mL as roughly 1 gram, but powdery or granular ingredients like flour and sugar have a density very different from water, so a generic converter alone can't give you the correct gram amount. This tool has built-in density data for each ingredient and supports both cups-to-grams and grams-to-cups conversion. All calculations run entirely in your browser, and nothing you enter is sent to a server.

How to Use the Cups to Grams Converter

  1. Choose the conversion direction Switch between "cups to grams" and "grams to cups" depending on what you need.
  2. Select an ingredient If your ingredient isn't listed, choose "Other" and enter its density (grams per cup) directly.
  3. Enter the amount and unit Choose from cup, tablespoon, teaspoon, fluid ounce, or mL, or from g, kg, oz, or lb, and enter a number.
  4. Check the converted result The result appears automatically in grams and ounces, or in cups, tablespoons, and teaspoons.

Tips for getting more out of it

  • For flour and powdered sugar, spoon the ingredient lightly into the measuring cup and then level it off with a straight edge for a more accurate weight. Scooping directly from the bag tends to pack the flour and make it heavier than intended.
  • Brown sugar is the one common exception: most recipes expect it to be packed firmly into the cup, unlike granulated sugar. Keep this difference in mind even though both use the same cup.
  • If you own a kitchen scale, weighing directly in grams using this chart's values is more accurate than measuring by volume, and it also means fewer cups and spoons to wash.
  • If your ingredient isn't listed, choose "Other" and enter the "grams per cup" value from the packaging or product page to get the same level of accuracy.

When to Use a Cups to Grams Converter

Recreating a recipe from an overseas recipe site or cookbook

Convert cup and tablespoon amounts into the gram measurements that are easier to work with at home.

Baking a precise recipe

Avoid the errors that come with volume measuring by switching to gram-based weighing on a kitchen scale.

Scaling a recipe up or down

Convert everything to grams first so doubling or halving a recipe stays accurate.

Comparing nutrition labels from imported food products

Convert "per cup" nutrition figures into grams so they can be compared with other foods measured by weight.

Cups to Grams Conversion Glossary

Density
The weight of an ingredient per cup. Powdery or granular ingredients like flour and sugar can weigh differently for the same volume depending on how tightly they're packed, so density figures are treated as estimates.
Spoon and level
A measuring method where you spoon the ingredient loosely into a measuring cup or spoon, then level off the excess with a straight edge. The values in this tool assume this method.
US measuring cup
The measuring cup used in American recipes, defined as 1 cup = 236.6 mL (8 fluid ounces). It differs in size from a Japanese measuring cup (1 cup = 200 mL), so take care when following recipes from either country.
Fluid ounce (fl oz)
A unit of volume equal to about 29.6 mL. Note that it is different from an ounce (oz), a unit of weight, so be careful not to confuse the two when reading a recipe.
Room-temperature butter
Butter that has been left out of the refrigerator until soft enough to leave a slight indent when pressed with a finger. Its density is nearly the same as when cold, but it affects how easily it can be measured.

Frequently Asked Questions

A cup measures volume, but ingredients differ in density (weight per volume). For example, honey packs more tightly into a cup than flour does, so the same 1 cup of honey weighs much more than 1 cup of flour.

No. A Japanese measuring cup is typically 200 mL, while a US measuring cup is about 236.6 mL (8 fluid ounces). If you measure an overseas recipe's cup amounts using a Japanese cup, you'll end up with roughly 18% less than intended.

Yes. Tablespoons and teaspoons are also volume units, so their weight depends on the ingredient's density just like cups. This tool automatically calculates the tablespoon and teaspoon weight for whichever ingredient you select.

Use the gram amount from this chart or tool with a kitchen scale instead. This is often more accurate than volume measuring, especially for dry ingredients like flour.
Tool-kun

Side Note — Why Do Overseas Recipes Measure by Volume Instead of Weight?

In Japan, recipe books and professional pastry kitchens typically measure ingredients by weight, in grams. In the United States and the United Kingdom, however, recipes still commonly rely on volume measurements like "1 cup" or "2 tablespoons." This difference is often traced back to when measuring cups and spoons became a standard part of the American kitchen much earlier than kitchen scales did, making volume-based recipes easy to follow without ever needing a scale.

Volume measuring does have a weakness, though. Airy ingredients like flour can vary in weight by close to 20% depending on how they're added to the cup, whether sifted first or simply scooped and packed down. Many professional bakers openly recommend weighing ingredients in grams instead of measuring by volume for exactly this reason, and a growing number of US recipe sites now list gram weights alongside cup measurements.

The density values used in this tool represent common estimates for ingredients measured carefully with the spoon-and-level method. The actual weight of "1 cup of flour" can still vary somewhat depending on the brand, milling process, and humidity. For recipes like baking, where small differences in quantity can noticeably affect the result, we recommend weighing ingredients on a kitchen scale whenever possible.