How many grams are in 1 cup of rolled oats?
A common reference point is 80 grams for 1 cup of rolled oats.
Ingredient converters
Oats Cups to Grams Converter
Useful for granola, oatmeal bakes, and cookies when you want a faster, cleaner measurement check.
180
grams
1.5 cups measured by weight
Pick the closest ingredient type, then enter the cup amount. The result uses the practical kitchen averages shown in the table below.
Common oats conversions
| Cups | Grams (g) |
|---|---|
| 1/4 cup | 20 g |
| 1/2 cup | 40 g |
| 3/4 cup | 60 g |
| 1 cup | 80 g |
| 1 1/2 cups | 120 g |
| 2 cups | 160 g |
Notes about measurement method
- Rolled oats and quick oats are close, but not identical, in cup weight.
- Steel-cut oats need a separate reference.
- Oats compress easily, so avoid packing the cup.
Oat type changes the result fast
The easiest mistake is using a rolled-oats conversion for steel-cut oats. They cook differently, absorb liquid differently, and do not sit in the cup the same way.
Even within the rolled-oats group, do not pack the cup down. Oats crush and settle very easily, which is why weight is the calmer reference for bars, crumble toppings, and baked oatmeal.
Common questions
Do quick oats weigh the same?
They are close, but checking the brand helps when texture matters.