grain
Rolled Oats Grams to Cups Converter
Standard Weight90g / US Cup
1 US cup of old-fashioned rolled oats weighs 90 grams. Source benchmark: USDA FoodData Central / King Arthur Baking.
Convert Grams of Rolled Oats (Old-Fashioned)
Instant volume conversion calculated specifically for rolled oats (old-fashioned) density.
100 grams
grams
Calculated Volume
0.83 cups
approx 3/4 cup + 1 tbsp
1 Cup3/41/21/4
Tablespoons13.3 tbsp
Teaspoons40.0 tsp
Ounces3.53 oz
💡 Measuring Advice:USDA
Spoon into measuring cup and level off with a straight knife edge.
Rolled Oats (Old-Fashioned) Grams to Cups Quick Reference Table
Common recipe weights converted for US Legal Cups (240ml), Metric Cups (250ml), and Imperial Cups (284ml).
| Grams (g) | US Cups (240ml) | Metric Cups (250ml) | Imperial Cups (284ml) | Tablespoons (tbsp) |
|---|---|---|---|---|
| 25 g | 0.28 cups | 0.27 cups | 0.24 cups | 4.4 tbsp |
| 50 g | 0.56 cups | 0.53 cups | 0.47 cups | 8.9 tbsp |
| 90 g | 1.00 cups | 0.96 cups | 0.85 cups | 16.0 tbsp |
| 100 g | 1.11 cups | 1.06 cups | 0.94 cups | 17.8 tbsp |
| 150 g | 1.67 cups | 1.60 cups | 1.42 cups | 26.7 tbsp |
| 200 g | 2.22 cups | 2.13 cups | 1.89 cups | 35.6 tbsp |
| 250 g | 2.78 cups | 2.66 cups | 2.36 cups | 44.4 tbsp |
| 300 g | 3.33 cups | 3.19 cups | 2.83 cups | 53.3 tbsp |
| 400 g | 4.44 cups | 4.26 cups | 3.77 cups | 71.1 tbsp |
| 500 g | 5.56 cups | 5.32 cups | 4.72 cups | 88.9 tbsp |
🔬 Density & Science Explainer
Flaked oat groats create large air gaps in measuring cups.
💡 Measurement Tips
- Scoop lightly without crushing oat flakes.
Frequently Asked Questions: Rolled Oats (Old-Fashioned)
How many grams is 1 cup of Rolled Oats (Old-Fashioned)?
1 US cup of rolled oats (old-fashioned) weighs exactly 90 grams (Scoop into cup and level gently.). A Metric cup (250ml) weighs 94 grams, and an Imperial cup weighs 106 grams.
How do I convert grams of Rolled Oats (Old-Fashioned) to cups without a scale?
Divide your required weight in grams by 90. For example, 100g divided by 90 equals 1.11 US cups.
What is the proper measurement technique for Rolled Oats (Old-Fashioned)?
Scoop into cup and level gently.
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