Rolled Oats Cups to Grams Converter
Convert rolled oats between cups and grams instantly, either direction.
1 cup of rolled oats = 90g (old-fashioned rolled oats, spooned into the cup)
Type in either box — the other updates automatically.
How This Conversion Works
Grams = cups × 90 (the standard weight of 1 cup of old-fashioned rolled oats). Cups = grams ÷ 90.
Worked example
A recipe calls for 100g of rolled oats.
100 ÷ 90 = 1.1111 cups
Frequently Asked Questions
How many grams is a cup of rolled oats?
1 cup of old-fashioned rolled oats is 90 grams.
What should I know about measuring rolled oats?
This conversion is for old-fashioned rolled oats, and this conversion is for old-fashioned rolled oats — quick oats are cut smaller and pack more densely, so they weigh somewhat more per cup, and steel-cut oats are denser still.
Should I use a kitchen scale instead of cups?
For baking specifically, yes if precision matters — weight doesn't vary with how tightly an ingredient is packed, so it's more consistent than volume measurement. This converter helps translate a cup-based recipe to weight, or a weight-based recipe back to cups.