1 Cup of Rolled Oats in Grams
1 cup of rolled oats weighs about 113 grams (3.99 oz).
US cup (236.6 ml). Source: King Arthur Baking Ingredient Weight Chart.
- Tablespoons
- 16 tbsp
- Teaspoons
- 48 tsp
- Milliliters
- 236.6 ml
- Grams
- 113 g
- Ounces (weight)
- 3.986 oz
Based on about 113 g per US cup of rolled oats. Real weights vary with brand and how the cup is filled.
Rolled Oats: cups to grams chart
| Cups | Grams | Ounces | Milliliters |
|---|---|---|---|
| 1/8 cup | 14 g | 0.5 oz | 30 ml |
| 1/4 cup | 28 g | 1 oz | 59 ml |
| 1/3 cup | 38 g | 1.33 oz | 79 ml |
| 1/2 cup | 57 g | 1.99 oz | 118 ml |
| 2/3 cup | 75 g | 2.66 oz | 158 ml |
| 3/4 cup | 85 g | 2.99 oz | 177 ml |
| 1 cup | 113 g | 3.99 oz | 237 ml |
| 1 1/2 cups | 170 g | 5.98 oz | 355 ml |
| 2 cups | 226 g | 7.97 oz | 473 ml |
| 3 cups | 339 g | 12 oz | 710 ml |
| 4 cups | 452 g | 15.9 oz | 946 ml |
Rolled Oats: grams to cups
Many recipes outside the US list weights. Divide the grams by 113 (the typical weight of one cup) to get cups. A tablespoon is 1/16 cup, about 7.1 g, and a teaspoon is 1/3 tablespoon, about 2.4 g.
| Grams | Cups (decimal) | Cups (nearest 1/8) | Tablespoons |
|---|---|---|---|
| 50 g | 0.442 | 1/2 | 7.08 |
| 100 g | 0.885 | 7/8 | 14.16 |
| 125 g | 1.106 | 1 1/8 | 17.7 |
| 200 g | 1.77 | 1 3/4 | 28.32 |
| 250 g | 2.212 | 2 1/4 | 35.4 |
| 300 g | 2.655 | 2 5/8 | 42.48 |
| 500 g | 4.425 | 4 3/8 | 70.8 |
How rolled oats compares with similar ingredients
Cup weights of nearby ingredients on this site, so you can see whether a swap changes the amount you weigh out. The last column is the difference from rolled oats per cup.
| Ingredient | 1 cup | Difference |
|---|---|---|
| rolled oats (this page) | 113 g | — |
| uncooked white rice | 198 g | +85 g |
| uncooked quinoa | 177 g | +64 g |
| chia seeds | 148 g | +35 g |
| sesame seeds | 142 g | +29 g |
Measuring rolled oats by cup and by weight
A cup of rolled (old-fashioned) oats is about 113 g by King Arthur's chart, though many oatmeal packages list closer to 80–90 g, because the flakes nest differently by brand. Quick oats are cut finer and pack closer together. For porridge, a typical serving is ½ cup of dry oats. Weigh the oats for baking where the oats-to-flour ratio shapes the cookie.
Need a different ingredient? Browse all cups-to-grams conversions, or use the plain cooking converter and cups to ml converter for water-like liquids.
Helpful answers
Frequently asked questions
- How many grams are in 1 cup of rolled oats?
- About 113 g (3.99 oz). This is a typical value from the King Arthur Baking Ingredient Weight Chart; your own cup may differ by several grams depending on brand and how it is measured.
- How many grams are in 1/2 cup of rolled oats?
- About 57 g (1.99 oz). For 1/4 cup it is about 28 g, and for 1/3 cup about 38 g.
- How many grams are in 1 tablespoon of rolled oats?
- About 7.1 g, since a US cup holds 16 tablespoons. A teaspoon is roughly 2.4 g.
- How many cups is 100 grams of rolled oats?
- About 0.885 cup, using 113 g per cup. Written the way recipes do, 250 g is about 2 1/4 cups and 500 g is about 4 3/8 cups.
- Is 1 cup of rolled oats heavier than 1 cup of uncooked white rice?
- No. At the typical values on this site, 1 cup of rolled oats is 113 g and 1 cup of uncooked white rice is 198 g, a difference of 85 g per cup.
- How much do oats expand when cooked?
- Rolled oats roughly double in volume, so ½ cup of dry oats becomes about 1 cup of cooked oatmeal.