Quick Answer: 1 cup of all-purpose flour = 120g, 1 cup of sugar = 200g, 1 cup of butter = 227g. Cups to grams varies by ingredient — use the full chart below for accurate conversions.
Converting cups to grams is one of the most important skills in baking. Unlike liquids, dry ingredients like flour, sugar, and rice have different weights per cup. A kitchen scale gives you the most accurate results — but our conversion charts below cover every common ingredient.
Cups to Grams — All-Purpose Flour
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 15g | 0.5 oz |
| 1/4 cup | 30g | 1 oz |
| 1/3 cup | 40g | 1.4 oz |
| 1/2 cup | 60g | 2.1 oz |
| 2/3 cup | 80g | 2.8 oz |
| 3/4 cup | 90g | 3.2 oz |
| 1 cup | 120g | 4.2 oz |
| 1.5 cups | 180g | 6.3 oz |
| 2 cups | 240g | 8.5 oz |
| 3 cups | 360g | 12.7 oz |
Cups to Grams — Granulated Sugar
| Cups | Grams | Ounces |
|---|---|---|
| 1/8 cup | 25g | 0.9 oz |
| 1/4 cup | 50g | 1.8 oz |
| 1/3 cup | 65g | 2.3 oz |
| 1/2 cup | 100g | 3.5 oz |
| 2/3 cup | 130g | 4.6 oz |
| 3/4 cup | 150g | 5.3 oz |
| 1 cup | 200g | 7.1 oz |
| 1.5 cups | 300g | 10.6 oz |
| 2 cups | 400g | 14.1 oz |
Cups to Grams — Butter
| Cups | Grams | Tablespoons |
|---|---|---|
| 1/8 cup | 28g | 2 tbsp |
| 1/4 cup | 57g | 4 tbsp |
| 1/3 cup | 76g | 5.3 tbsp |
| 1/2 cup | 113g | 8 tbsp |
| 2/3 cup | 151g | 10.6 tbsp |
| 3/4 cup | 170g | 12 tbsp |
| 1 cup | 227g | 16 tbsp |
| 2 cups | 454g | 32 tbsp |
Cups to Grams — Common Ingredients Quick Reference
| Ingredient | 1 Cup in Grams | 1/2 Cup in Grams |
|---|---|---|
| All-purpose flour | 120g | 60g |
| Bread flour | 130g | 65g |
| Cake flour | 100g | 50g |
| Whole wheat flour | 130g | 65g |
| Granulated sugar | 200g | 100g |
| Powdered sugar | 120g | 60g |
| Brown sugar (packed) | 220g | 110g |
| Butter | 227g | 113g |
| Honey | 340g | 170g |
| Rolled oats | 90g | 45g |
| White rice (uncooked) | 185g | 93g |
| Cocoa powder | 85g | 43g |
| Desiccated coconut | 80g | 40g |
| Almond flour | 96g | 48g |
| Milk | 240g | 120g |
| Water | 240g | 120g |
Why Cups and Grams Are Different for Every Ingredient
A cup is a unit of volume — it measures how much space something takes up. A gram is a unit of weight. Because different ingredients have different densities, the same cup volume weighs a different amount depending on what is inside it.
For example, 1 cup of water weighs 240g because water is dense. But 1 cup of flour only weighs 120g because flour is light and airy. This is why baking recipes from the UK and Australia list grams — it is far more precise than cups.
How to Measure Flour Correctly in Cups
The biggest mistake people make is scooping flour directly with the measuring cup. This packs the flour down and adds up to 20% extra weight — ruining your recipe. Always follow these steps:
Step 1 — Fluff the flour in its bag or container with a spoon.
Step 2 — Spoon the flour into the measuring cup gently.
Step 3 — Level off the top with a flat knife.
Step 4 — This gives you the correct 120g per cup.
Pro Tip: For the most accurate baking results, always use a digital kitchen scale and weigh ingredients in grams. Cups are convenient but grams are precise.
Cups to Grams — Rice and Grains
| Ingredient | 1 Cup | 3/4 Cup | 1/2 Cup | 1/4 Cup |
|---|---|---|---|---|
| White rice (uncooked) | 185g | 139g | 93g | 46g |
| Brown rice (uncooked) | 190g | 143g | 95g | 48g |
| Quinoa (uncooked) | 170g | 128g | 85g | 43g |
| Rolled oats | 90g | 68g | 45g | 23g |
| Breadcrumbs (dry) | 110g | 83g | 55g | 28g |
Frequently Asked Questions
How many grams is 1 cup of flour?
1 cup of all-purpose flour = 120g. Bread flour is slightly heavier at 130g per cup. Cake flour is lighter at 100g per cup. For more detail see our full guide on 1 cup of flour in grams.
How many grams is 1 cup of sugar?
1 cup of granulated sugar = 200g. Brown sugar packed = 220g. Powdered sugar = 120g. See our complete guide on 1 cup of sugar in grams for all sugar types.
Is 1 cup always 250g?
No. 1 cup = 250g is only true for water and some liquids. For dry ingredients the weight varies completely. Flour is 120g, sugar is 200g, butter is 227g per cup.
How do I convert cups to grams without a scale?
Use our conversion tables above. Find your ingredient, find the cup amount, and read the grams directly. For ingredients not listed, the general rule is: 1 cup = the ingredient weight listed on its nutrition label per serving × number of servings in a cup.
Why does my recipe say cups but I only have a scale?
Use this page as your reference. Find the ingredient in the tables above and use the gram equivalent. For tablespoon conversions see our guide on how many tablespoons in a cup.
📌 Summary — Cups to Grams
• 1 cup flour = 120g
• 1 cup sugar = 200g
• 1 cup butter = 227g
• 1 cup brown sugar = 220g
• 1 cup honey = 340g
• 1 cup rice = 185g
• 1 cup oats = 90g
Related: 1 cup flour in grams · Tablespoons in a cup · ml in a cup
