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Grams to Cups Converter

Convert grams to cups, or cups to grams, for flour, sugar, butter, milk, rice, oats, honey and other baking ingredients, using USDA weights for one cup.

Results

ItemValue
Cup weights depend on how you fill the cup. These use USDA FoodData Central weights for one level US cup (236.6 mL); spooning flour into the cup and leveling it gives about the same weight. For the most accurate baking, weigh your ingredients.

Quick Answer

Grams to cups = grams ÷ the weight of one cup of that ingredient. One cup of all-purpose flour weighs 125 g (USDA), so 250 g of flour is 2 cups. One cup of granulated sugar weighs 200 g and one cup of butter 227 g, so the same number of grams gives a different number of cups for each ingredient.

Last updated: 10 November 2026 ·How we calculate this: USDA FoodData Central gram weights per cup

How This Grams to Cups Converter Works

Grams measure weight and cups measure volume, so there is no single conversion: a cup of honey weighs almost three times as much as a cup of flour. Choose the ingredient, choose grams to cups or cups to grams, and enter the amount. The converter uses the USDA FoodData Central weight for one level US cup of that ingredient, then shows the result in cups (with the nearest kitchen fraction), tablespoons, teaspoons and ounces.

Quick explanation: cups = grams ÷ grams per cup.

  • Flour: 125 g per cup.
  • Sugar: 200 g per cup.
  • Butter: 227 g per cup (two sticks).

How to Use the Grams to Cups Converter

  1. Choose the ingredient.
  2. Choose grams to cups or cups to grams.
  3. Enter the amount, using fractions such as 3/4 for cups if you like.
  4. Press Calculate.
  5. Read the cups, tablespoons, teaspoons and ounces.

Grams and Cups Formulas

  • Grams to cups: cups = grams ÷ (grams in 1 cup of the ingredient)
  • Cups to grams: grams = cups × (grams in 1 cup)
  • Spoons: 1 cup = 16 tablespoons = 48 teaspoons
  • US cup: 236.6 mL, so 1 cup of water weighs about 237 g
  • Ounces: grams ÷ 28.35

Key Terms

  • Gram: a metric unit of weight; 1,000 g = 1 kg.
  • US cup: a volume of 236.6 mL, or 16 tablespoons.
  • Level cup: a cup filled and scraped flat, the standard for recipes.
  • Packed: pressed firmly into the cup, as for brown sugar.
  • Sifted: passed through a sieve, which makes powders lighter per cup.

Worked Example

A European recipe asks for 300 g of flour, 150 g of sugar and 100 g of butter.

  • Flour: 300 ÷ 125 = 2.4 cups (2 1/3 cups)
  • Sugar: 150 ÷ 200 = 0.75 cup (3/4 cup)
  • Butter: 100 ÷ 227 = 0.44 cup, just under 1/2 cup, or about 7 tablespoons
  • For the best result, weigh the flour, because a packed cup can hold much more.

Real-Life Examples

  • Bread flour: 500 g of all-purpose flour is 4 cups.
  • Sugar: 1 1/2 cups of sugar weighs 300 g.
  • Rice: 200 g of uncooked white rice is about 1.08 cups.
  • Honey: 1/4 cup of honey weighs about 85 g.

Weight vs Volume in Recipes

  • Weight (grams, ounces): exact and the same however the ingredient is packed.
  • Volume (cups, spoons): quick, but the amount depends on packing and the ingredient.
  • Fluid ounces vs ounces: fluid ounces measure volume; ounces measure weight. They match only for water.

Grams in One Cup

IngredientGrams per cupGrams per tablespoon
All-purpose flour125 g7.8 g
Granulated sugar200 g12.5 g
Brown sugar, packed220 g13.8 g
Powdered sugar, unsifted120 g7.5 g
Butter227 g14.2 g
Water236.6 g14.8 g
Whole milk244 g15.2 g
Heavy cream (liquid)238 g14.9 g
Olive oil216 g13.5 g
Honey339 g21.2 g
Maple syrup315 g19.7 g
White rice, uncooked185 g11.6 g
Rolled oats81 g5.1 g
Cocoa powder, unsweetened86 g5.4 g
Cornstarch128 g8.0 g
Table salt292 g18.2 g
Peanut butter, smooth258 g16.1 g
Almonds, whole143 g8.9 g
Parmesan, grated100 g6.2 g

Why Weighing Beats Measuring Cups

How much flour fits in a cup depends on whether you scoop it straight from the bag, spoon it in, or sift it first. Scooping can pack in 20% or more extra flour, which makes cakes dry and cookies tough. Brown sugar is measured packed, and powdered sugar changes a lot when sifted (USDA lists 100 g sifted and 120 g unsifted). A kitchen scale removes the guesswork, which is why many bakers and most European recipes use grams.

Common Mistakes to Avoid

  • Using one conversion for every ingredient. Each ingredient has its own weight per cup.
  • Scooping flour from the bag. It packs the cup; spoon and level instead.
  • Confusing fluid ounces and ounces. They only match for water.
  • Mixing US and metric cups. A metric cup is 250 mL, a US cup 236.6 mL.
  • Forgetting to pack brown sugar. Recipes mean packed unless they say otherwise.

Frequently Asked Questions

About 125 g of all-purpose flour, according to USDA FoodData Central.

About 200 g of granulated sugar.

About 227 g, which is two US sticks.

It depends on the ingredient: 0.8 cup of flour, 1/2 cup of sugar, or 0.44 cup of butter.

Divide the grams by the weight of one cup of that ingredient.

About 237 g, because a US cup is 236.6 mL.

Close: USDA lists 244 g for a cup of whole milk.

Recipe writers often use their own cup weights, such as 120 g or 130 g for flour.

No, the rice weight is for uncooked white rice.

References & Sources

SourceUsed ForLink
USDA FoodData Central Gram weights for one cup of each ingredient (SR Legacy food measures). https://fdc.nal.usda.gov/
USDA FoodData Central, Wheat flour, white, all-purpose (FDC 168894) 1 cup = 125 g. https://fdc.nal.usda.gov/food-details/168894/measures
NIST, Guide to the SI, Appendix B.8 The US cup and other volume units. https://www.nist.gov/pml/special-publication-811/nist-guide-si-appendix-b-conversion-factors/nist-guide-si-appendix-b8