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Cornstarch — Cups in Ounces
How many ounces of cornstarch in 1 cup?
1 cup of cornstarch equals 4.23 ( ~ 4 1/4) ounces*
About cornstarch measurements
Cornstarch is a superfine powder that settles tightly in the box, giving a reference density around 0.51 g/ml (about 120 g per cup). It compacts under its own weight, so digging a cup from a fresh box packs in more than gently spooning it — fluff or sift it first for an honest measure.
Cups of cornstarch equivalent in ounces?
FAQs on cornstarch volume to weight conversion
1 cup of cornstarch equals how many ounces?
1 cup of cornstarch is equivalent 4.23 ( ~ 4 1/4) ounces.
How much is 4.23 ounces of cornstarch in cups?
4.23 ounces of cornstarch equals 1 cup.
US cups to Ounces of Cornstarch Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| US cups to ounces of Cornstarch | |
|---|---|
| 0.264 ( ~ 1/4 ) ounces | |
| 0.529 ( ~ 1/2 ) ounces | |
| 1.06 ( ~ 1 ) ounces | |
| 1.41 ( ~ 1 1/3 ) ounces | |
| 2.12 ( ~ 2 1/8 ) ounces | |
| 2.82 ( ~ 2 3/4 ) ounces | |
| 3.17 ( ~ 3 1/8 ) ounces | |
| 1 US cup | 4.23 ( ~ 4 1/4 ) ounces |
| 1 | 4.5 ( ~ 4 1/2 ) ounces |
| 1 | 4.76 ( ~ 4 3/4 ) ounces |
| 1 | 5.29 ( ~ 5 1/4 ) ounces |
| 1 | 5.64 ( ~ 5 2/3 ) ounces |
| 1 | 6.35 ( ~ 6 1/3 ) ounces |
| 1 | 7.05 ( ~ 7 ) ounces |
| 1 | 7.4 ( ~ 7 1/3 ) ounces |
| 2 US cups | 8.46 ( ~ 8 1/2 ) ounces |
| 2 | 8.73 ( ~ 8 3/4 ) ounces |
| 2 | 8.99 ( ~ 9 ) ounces |
| 2 | 9.52 ( ~ 9 1/2 ) ounces |
| 2 | 9.87 ( ~ 9 3/4 ) ounces |
| 2 | 10.6 ( ~ 10 1/2 ) ounces |
| 3 US cups | 12.7 ( ~ 12 2/3 ) ounces |
| 4 US cups | 16.9 ( ~ 17 ) ounces |
| 5 US cups | 21.2 ( ~ 21 1/8 ) ounces |
| 6 US cups | 25.4 ( ~ 25 1/3 ) ounces |
| 8 US cups | 33.8 ( ~ 33 3/4 ) ounces |
| 10 US cups | 42.3 ( ~ 42 1/3 ) ounces |
References:
Popular Volume to Weight Conversions
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.