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Rolled Oats: Cups to Grams

1 cup = 81 g

1 US cup of rolled oats weighs 81 grams (2.9 oz). Half a cup is 40.5 g and a tablespoon is 5.1 g.

Amount

Unit

Ingredient

Cups to grams

1/8 cup 10.1 g

1/4 cup 20.3 g 1/3 cup 27 g 1/2 cup 40.5 g 2/3 cup 54 g 3/4 cup 60.8 g 1 cup 81 g

1 1/2 cups 121.5 g

2 cups 162 g 3 cups 243 g

4 cups 324 g

Grams to cups

10 g 2 tbsp (0.12)

25 g 1/4 cup + 1 tbsp (0.31)

50 g 1/2 cup + 2 tbsp (0.62)

75 g 3/4 cup + 3 tbsp (0.93)

100 g 1 1/4 cups (1.23) 125 g 1 1/2 cups + 1 tbsp (1.54) 150 g 1 3/4 cups + 2 tbsp (1.85) 200 g 2 1/3 cups + 2 tbsp (2.47) 250 g 3 cups + 1 tbsp (3.09) 300 g 3 2/3 cups + 1 tbsp (3.7)

400 g 4 3/4 cups + 3 tbsp (4.94)

500 g 6 cups + 3 tbsp (6.17)

750 g 9 1/4 cups (9.26)

1000 g 12 1/3 cups (12.35)

Spoons to grams

1 tablespoon 5.1 g

1 teaspoon 1.7 g

½ teaspoon 0.8 g

¼ teaspoon 0.4 g

Source

USDA measured 1 cup (regular and quick, dry) of rolled oats at 81 g. FoodData Central #173904. US cup = 236.6 ml. How you fill the cup changes the weight, so weigh ingredients for baking when you can.

Other flour & grains

All-purpose flour 1 cup = 125 g Bread flour 1 cup = 137 g Cake flour 1 cup = 137 g Whole wheat flour 1 cup = 120 g Self-rising flour 1 cup = 125 g Cornstarch 1 cup = 128 g Cornmeal 1 cup = 122 g Semolina 1 cup = 167 g White rice 1 cup = 185 g Brown rice 1 cup = 185 g Quinoa 1 cup = 170 g Couscous 1 cup = 173 g Lentils 1 cup = 192 g

All ingredients, cups to grams →

About the Unit Converter

The unit converter changes values between metric and imperial units for length, weight, temperature, digital data, area, and volume.

How to use it

1 Choose a category, such as length or temperature.
2 Pick the unit to convert from and the unit to convert to.
3 Type a value to see the converted result straight away.

Frequently asked questions

How many grams is 1 cup of rolled oats?

1 US cup of rolled oats weighs 81 g, as measured by the USDA (1 cup (regular and quick, dry)). A tablespoon weighs 5.1 g.

How do I convert grams of rolled oats to cups?

Divide the grams by 81. For example, 100 g of rolled oats is 1.23 cups, about 1 1/4 cups.

Is a US cup the same as a metric cup?

No. A US cup is 236.6 ml and a metric cup (Australia, Canada, New Zealand) is 250 ml, so a metric cup of an ingredient weighs about 5–6% more than the US weights here.

Why weigh instead of using cups?

How you fill a cup changes how much goes in: scooped flour packs down, spooned flour stays loose. Weighing gives the same amount every time, which matters most for baking.

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