Cups to Grams Converter
Precisely convert cups to grams for over 50 cooking and baking ingredients. Our converter accounts for ingredient density — because 1 cup of flour (125g) is very different from 1 cup of sugar (200g).
Quick reference: All-purpose flour
125g
= 1 cup
7.81g
= 1 tbsp
2.6g
= 1 tsp
4.41oz
= 1 cup
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Try MealMatics FreeHow to Convert Cups to Grams
The conversion from cups to grams is not a fixed ratio — it depends entirely on what you're measuring. A cup is a unit of volume (how much space something takes up), while grams measure weight (how heavy it is). Since different ingredients have different densities, the same volume produces different weights.
This is especially important for baking, where precision matters. Professional bakers almost always weigh their ingredients in grams rather than using volume measurements. If you're following a recipe from another country, you'll often need to convert between these systems.
Cups to Grams — Quick Reference Chart
| Ingredient | 1 Cup | ½ Cup | ¼ Cup |
|---|---|---|---|
| All-purpose flour | 125g | 63g | 31g |
| Granulated sugar | 200g | 100g | 50g |
| Brown sugar (packed) | 220g | 110g | 55g |
| Powdered sugar | 120g | 60g | 30g |
| Butter | 227g | 114g | 57g |
| Milk | 245g | 123g | 61g |
| Honey | 340g | 170g | 85g |
| Rolled oats | 90g | 45g | 23g |
| Rice (uncooked) | 185g | 93g | 46g |
| Cocoa powder | 86g | 43g | 22g |
Frequently Asked Questions
How many grams is 1 cup of flour?
1 cup of all-purpose flour weighs approximately 125 grams. Bread flour weighs slightly more at 130g per cup, and cake flour is lighter at 114g per cup.
How many grams is 1 cup of sugar?
1 cup of granulated white sugar weighs 200 grams. Brown sugar (packed) weighs 220g per cup, and powdered sugar weighs 120g per cup.
Why is a cup of flour lighter than a cup of sugar?
Flour particles are irregularly shaped and trap a lot of air between them, making flour less dense. Sugar granules are more uniform and pack together tightly, resulting in a heavier cup.
Is this converter accurate for baking?
Yes. Our data comes from USDA FoodData Central and professional baking references. For maximum baking precision, we recommend using a kitchen scale.
What size cup does this converter use?
We use the US customary cup (236.588 ml). This is different from the metric cup (250 ml) used in Australia.