How Many Grams in 1 Cup of Oats?
1 cup of old-fashioned rolled oats weighs 90 grams. Quick oats weigh ~100 grams.
Direct Answer:
1 US Cup of Rolled Oats (Old Fashioned) = 80 grams (2.82 oz)
Kitchen Measurement Converter
Live CalculationConvert weight to volume accurately by accounting for density differences.
Quick:
Traditional US recipe cup defined as exactly 8 fluid ounces.
Cup standards differ by region (US 236.6 mL, US Legal 240 mL, Metric 250 mL, UK 284.1 mL, Japanese 200 mL). US Customary is standard for American recipes.
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1 cups (1)
Weight equivalent: 80.0g (2.82 oz)
1 grams of Rolled Oats (Old Fashioned) equals approximately 1 cups (US Customary Cup).
16.0 Tablespoons
48.0 Teaspoons
236.6 mL Volume (mL)
2.82 oz Ounces (Weight)
1 Cup of Rolled Oats Across International Cup Standards
Compare the weight of 1 cup across US Customary, US Legal, Metric, UK Imperial, and Japanese cups.
| Ingredient | Weight | Cups (US Standard) | Tablespoons | Teaspoons |
|---|---|---|---|---|
| US Customary Cup (236.588 mL) | 80g | 1 cup (1.0 cups) | 16.0 tbsp | 48.0 tsp |
| US Legal Cup (Nutrition) (240 mL) | 81g | 1 cup (1.0 cups) | 16.0 tbsp | 48.0 tsp |
| Metric Cup (250 mL) | 85g | 1 cup (1.0 cups) | 16.0 tbsp | 48.0 tsp |
| UK Imperial Cup (284.131 mL) | 96g | 1 cup (1.0 cups) | 16.0 tbsp | 48.0 tsp |
| Japanese Cup (200 mL) | 68g | 1 cup (1.0 cups) | 16.0 tbsp | 48.0 tsp |
Measurement & Technique Guide for Rolled Oats (Old Fashioned)
Whole oat groats steamed and flattened with steel rollers, preserving the germ, bran, and endosperm.
Chef's Culinary Tip:
In oatmeal cookies and fruit crisps, rolled oats provide chew and texture; do not substitute instant oats without expecting a denser crumb.