Grains, Rice & Legumes
Rolled Oats conversion chart
1 cup of rolled oats = 90 g = 3.17 oz. Convert any amount below, or use the reference charts for cups, tablespoons, grams and ounces.
1 cup of rolled oats =
90 g
- oz
- 3.17
- kg
- 0.09
- lb
- 0.198
- 1 cup
- 90 g
- 1 tablespoon
- 5.63 g
- 1 teaspoon
- 1.88 g
- 1 cup in ounces
- 3.17 oz
- 100 g in cups
- 1.11 cups
- Density
- 0.38 g/ml
Measuring note
Old-fashioned rolled oats. Quick oats are cut smaller and measure closer to 100 g per cup.
Source: USDA FoodData Central
Rolled Oats cups to grams chart
US cups converted to grams, ounces and millilitres. Fractions are written the way recipes write them.
| Cups (US) | Grams | Ounces (weight) | Millilitres |
|---|---|---|---|
| 1/8 cup | 11.3 g | 0.397 oz | 29.6 ml |
| 1/4 cup | 22.5 g | 0.794 oz | 59.1 ml |
| 1/3 cup | 30 g | 1.06 oz | 78.9 ml |
| 1/2 cup | 45 g | 1.59 oz | 118 ml |
| 2/3 cup | 60 g | 2.12 oz | 158 ml |
| 3/4 cup | 67.5 g | 2.38 oz | 177 ml |
| 1 cup | 90 g | 3.17 oz | 237 ml |
| 1 1/2 cup | 135 g | 4.76 oz | 355 ml |
| 2 cup | 180 g | 6.35 oz | 473 ml |
| 3 cup | 270 g | 9.52 oz | 710 ml |
| 4 cup | 360 g | 12.7 oz | 946 ml |
Tablespoons and teaspoons
1 tbsp ≈ 5.63 g · 1 tsp ≈ 1.88 g
| Tablespoons (US) | Grams | Cups (US) |
|---|---|---|
| 1 tbsp | 5.63 g | 0.063 cup |
| 2 tbsp | 11.3 g | 0.125 cup |
| 3 tbsp | 16.9 g | 0.188 cup |
| 4 tbsp | 22.5 g | 0.25 cup |
| 5 tbsp | 28.1 g | 0.313 cup |
| 6 tbsp | 33.8 g | 0.375 cup |
| 8 tbsp | 45 g | 0.5 cup |
| 10 tbsp | 56.3 g | 0.625 cup |
| 12 tbsp | 67.5 g | 0.75 cup |
| 16 tbsp | 90 g | 1 cup |
Grams back to cups
Useful when a metric recipe gives grams but you only own cups.
| Grams | Cups (US) | Tablespoons (US) |
|---|---|---|
| 10 g | 0.111 cup | 1.78 tbsp |
| 25 g | 0.278 cup | 4.44 tbsp |
| 50 g | 0.556 cup | 8.89 tbsp |
| 75 g | 0.833 cup | 13.3 tbsp |
| 100 g | 1.11 cup | 17.8 tbsp |
| 125 g | 1.39 cup | 22.2 tbsp |
| 150 g | 1.67 cup | 26.7 tbsp |
| 200 g | 2.22 cup | 35.6 tbsp |
| 250 g | 2.78 cup | 44.4 tbsp |
| 500 g | 5.56 cup | 88.9 tbsp |
| 1000 g | 11.1 cup | 178 tbsp |
Single-conversion pages for rolled oats
Working with rolled oats
Rolled Oats sits in the grains, rice & legumes group, where the ingredient is light and airy, so a cup contains a lot of trapped air and the weight swings easily with handling. Old-fashioned rolled oats. Quick oats are cut smaller and measure closer to 100 g per cup.
If you are converting a whole recipe rather than a single line, the Recipe to Metric converter matches every ingredient to its own density in one pass, and the Recipe Scaler resizes the batch first so you only convert once.
Frequently asked questions
How many grams are in a cup of rolled oats?
One US cup of rolled oats weighs about 90 grams (3.17 oz). Old-fashioned rolled oats. Quick oats are cut smaller and measure closer to 100 g per cup.
How many grams are in a tablespoon of rolled oats?
One US tablespoon holds about 5.63 g, and one teaspoon about 1.88 g, since a tablespoon is 14.79 ml and a teaspoon 4.93 ml.
How many cups is 100 g of rolled oats?
100 grams of rolled oats is roughly 1.11 US cups. Weighing is more reliable than filling a cup, especially for grains, rice & legumes.
Where does this figure come from?
The density used here is 0.380 g/ml, based on USDA FoodData Central. Treat it as an approximation: real batches vary with brand, moisture and how the cup is filled.