Quick oats — Cups to Grams
One US cup of quick oats weighs about 90 grams. That makes it lighter than all-purpose flour, which is 120 grams per cup. Quick oats are cut smaller than rolled oats but weigh about the same per cup. Use the converter below to switch quick oats between cups, grams, ounces, tablespoons and millilitres — or read the full chart underneath.
Quick oats conversion chart
| Cups | Grams | Ounces | Tablespoons | Millilitres |
|---|---|---|---|---|
| ⅛ cup | 11.25 g | 0.397 oz | 2 | 29.57 ml |
| ¼ cup | 22.5 g | 0.794 oz | 4 | 59.15 ml |
| ⅓ cup | 30 g | 1.06 oz | 5.33 | 78.86 ml |
| ½ cup | 45 g | 1.59 oz | 8 | 118.3 ml |
| ⅔ cup | 60 g | 2.12 oz | 10.67 | 157.7 ml |
| ¾ cup | 67.5 g | 2.38 oz | 12 | 177.4 ml |
| 1 cup | 90 g | 3.17 oz | 16 | 236.6 ml |
| 1¼ cups | 112.5 g | 3.97 oz | 20 | 295.7 ml |
| 1½ cups | 135 g | 4.76 oz | 24 | 354.9 ml |
| 2 cups | 180 g | 6.35 oz | 32 | 473.2 ml |
| 3 cups | 270 g | 9.52 oz | 48 | 709.8 ml |
Grams to cups: quick oats
| Grams | Cups | Ounces | Tablespoons |
|---|---|---|---|
| 10 g | 0.111 | 0.353 oz | 1.78 |
| 25 g | 0.278 | 0.882 oz | 4.44 |
| 50 g | 0.556 | 1.76 oz | 8.89 |
| 75 g | 0.833 | 2.65 oz | 13.33 |
| 100 g | 1.11 | 3.53 oz | 17.78 |
| 125 g | 1.39 | 4.41 oz | 22.22 |
| 150 g | 1.67 | 5.29 oz | 26.67 |
| 200 g | 2.22 | 7.05 oz | 35.56 |
| 250 g | 2.78 | 8.82 oz | 44.44 |
| 300 g | 3.33 | 10.58 oz | 53.33 |
| 400 g | 4.44 | 14.11 oz | 71.11 |
| 500 g | 5.56 | 17.64 oz | 88.89 |
How to measure quick oats
Quick oats are cut smaller than rolled oats but weigh about the same per cup.
Because a cup measures volume rather than weight, the most reliable way to measure quick oats is with a digital kitchen scale. If you are working from cups, keep your technique consistent every time so your results are repeatable. For more, see our guide on baking by weight versus volume.
No scale yet? You don't need a fancy one; any digital kitchen scale that reads in 1-gram steps does everything on this site. Well-rated kitchen scales on Amazon →
As an Amazon Associate, Cups & Grams earns from qualifying purchases, at no extra cost to you. How this works.
Substitutes for quick oats
- Equal rolled oats by volume (cookies, muffins, bars) (King Arthur Baking)Rolled oats add more chew and visible texture. Pulse rolled oats briefly in a food processor for a closer match in recipes that depend on quick oats absorbing moisture fast.
- For overnight-soak bread doughs: quick oats need only a 20-minute soak (King Arthur Baking)Do not soak quick oats overnight — they turn gummy. Steel-cut oats are not a swap.
See all quick oats substitutes, ratios and sources →
Compare quick oats
Quick oats conversions: FAQ
Why doesn't a cup of quick oats weigh the same as a cup of water?
Common quick oats conversions
Quick-answer pages for the conversions people search for most.
Related converters
* Conversion figures are typical average weights for one US customary cup (236.6 ml), based on the King Arthur Baking Ingredient Weight Chart and cross-referenced with the U.S. Department of Agriculture FoodData Central database. Actual weight varies with packing, brand and humidity — see our methodology.