1 oz of Cornstarch to Cups
1 ounce of cornstarch = about ¼ cup
That's 0.24 US cups, or 0.22 metric cups (250 ml).
1 ounce of cornstarch in other units
- Grams
- 28
- US cups
- 0.24
- Metric cups (250 ml)
- 0.22
- Tablespoons
- 3.78
- Milliliters
- 56
How to convert ounces of cornstarch to cups
Weight ounces first become grams (1 oz = 28.35 g), so 1 oz = 28 g. One US cup of cornstarch weighs 120 g, so 28 ÷ 120 = 0.24 cups.
Spoon flour into the cup and level it with a knife. Scooping straight from the bag packs it down and can add 20–30% more.
Cornstarch: ounces to cups chart
| Ounces | Cups | Exact |
|---|---|---|
| 1 ounce | about ¼ cup | 0.24 cups |
| 2 ounces | about ½ cup | 0.47 cups |
| 3 ounces | about ¾ cup | 0.71 cups |
| 4 ounces | about 1 cup | 0.94 cups |
| 5 ounces | about 1⅛ cups | 1.18 cups |
| 6 ounces | about 1⅜ cups | 1.42 cups |
| 8 ounces | about 1⅞ cups | 1.89 cups |
| 10 ounces | about 2⅜ cups | 2.36 cups |
| 12 ounces | about 2⅞ cups | 2.83 cups |
| 16 ounces | about 3¾ cups | 3.78 cups |
1 ounce of other ingredients
The same amount weighs very different things depending on the ingredient:
| Ingredient | Cups | Exact |
|---|---|---|
| All-Purpose Flour | about ¼ cup | 0.23 cups |
| Bread Flour | about ¼ cup | 0.22 cups |
| Self-Rising Flour | about ¼ cup | 0.23 cups |
| Whole Wheat Flour | about ¼ cup | 0.24 cups |
| Cake Flour | ¼ cup | 0.25 cups |
| Almond Flour | about ⅓ cup | 0.3 cups |
| Coconut Flour | ¼ cup | 0.25 cups |
| Rye Flour | about ¼ cup | 0.28 cups |
| Spelt Flour | about ¼ cup | 0.28 cups |
| Oat Flour | about ⅓ cup | 0.31 cups |
| Rice Flour | about 2¾ tablespoons | 0.18 cups |
| Tapioca Starch | about ¼ cup | 0.24 cups |
| Cornmeal | about 3¼ tablespoons | 0.21 cups |
| Semolina | about 2¾ tablespoons | 0.17 cups |
More cornstarch conversions
- All cornstarch conversions
- 100 grams of cornstarch to cups
- 1 cup of cornstarch to grams
- 1 tablespoon of cornstarch to grams
Frequently asked questions
How many cups is 1 ounce of cornstarch?
1 ounce of cornstarch is about ¼ cup (0.24 cups), based on 120 g per level US cup.
Is it different with a UK or Australian cup?
Slightly. UK, Australian and New Zealand recipes use a 250 ml metric cup, which is about 6% bigger than a US cup (236.6 ml). In metric cups, 1 ounce of cornstarch is 0.22 cups.
Should I weigh cornstarch or measure it by volume?
Spoon flour into the cup and level it with a knife. Scooping straight from the bag packs it down and can add 20–30% more. Weighing is always more accurate, which is why grams are the safest choice for baking.