Convert Cups to Grams: Steel-Cut Oats
Convert cups of steel-cut oats to grams with this complete reference table. 1 cup of steel-cut oats = 160g (USDA FoodData Central, spooned-and-leveled method). Use the table below for fractions from 1/8 cup up to 4 cups. For precision baking, weight measurements in grams are always more reliable than volume measurements in cups, because steel-cut oats density can vary by measuring technique.
Steel-Cut Oats Cups to Grams Table
| Cups | Grams |
|---|---|
| 1/8 cup | 20g |
| 1/4 cup | 40g |
| 1/3 cup | 53.3g |
| 1/2 cup | 80g |
| 2/3 cup | 106.7g |
| 3/4 cup | 120g |
| 1 cup | 160g |
| 1 1/4 cups | 200g |
| 1 1/2 cups | 240g |
| 2 cups | 320g |
| 3 cups | 480g |
| 4 cups | 640g |
Based on USDA FoodData Central data (1 US cup = 240ml = 16 tablespoons = 48 teaspoons). Note: Steel-cut oats: 1 cup = 160g — significantly denser than rolled oats (90g/cup). Cut from whole oat groats by steel blades, not rolled. Takes 20-30 minutes to cook. Chewier texture with lower glycemic index than rolled oats. Also called Irish oats or pinhead oats.
About Steel-Cut Oats Density
The density of steel-cut oats determines how much it weighs per unit of volume. At 0.667g/ml, 1 US cup (240ml) of steel-cut oats weighs 160g under USDA standard conditions.
Volume measurements can vary by ±10–20% depending on technique (sifted vs. spooned vs. scooped). For consistent baking results, use a kitchen scale with gram measurements whenever possible. The USDA standard (spooned-and-leveled) is the reference point for all values on this page.
Frequently Asked Questions
How many grams is 1 cup of steel-cut oats?
1 cup of steel-cut oats weighs 160 grams (USDA FoodData Central, spooned-and-leveled method, 1 US cup = 240ml).
How many grams is 1/2 cup of steel-cut oats?
1/2 cup of steel-cut oats weighs 80 grams.
How many grams is 1/4 cup of steel-cut oats?
1/4 cup of steel-cut oats weighs 40 grams.
Does measuring technique affect the weight of steel-cut oats?
Yes. Sifted steel-cut oats can weigh up to 20% less than packed or scooped. The USDA standard (spooned-and-leveled) of 160g/cup is the most reliable baseline.