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How Much Is 0.85 Ounces of Cornstarch in Cups?

0.85 ounces of cornstarch equals 0.19 cups. That's 24.10g, and Cornstarch has a density of 128g per cup. Because ounces measure weight and cups measure volume, the result depends on the ingredient's density.

0.85 ounces of cornstarch
=
0.19cups
Result using all cup standards info
0.19 cups (US) 0.18 cups (Metric Cup) 0.16 cups (Imperial Cup)
0.19

Formula and Step-by-Step

(ounces × 28.35g/oz) ÷ 128g/cup = cups
  1. Start with 0.85 ounces of cornstarch
  2. Convert ounces to grams: 0.85 × 28.35 = 24.10g
  3. 1 cup of cornstarch = 128g
  4. 24.10g ÷ 128g/cup = 0.19 cups

The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.

Measuring Tip

For the most consistent results, weigh cornstarch on a kitchen scale. Volume measurements can vary by 20-30% depending on how the flour is scooped.

Cornstarch at Different Amounts

How cornstarch scales across common ounces measurements. Your amount (0.85 ounces) is highlighted.

0.85 oz0.19 cups1 oz0.22 cups2 oz0.44 cups3 oz0.66 cups4 oz0.89 cups5 oz1.11 cups6 oz1.33 cups8 oz1.77 cups

Other Amounts of Cornstarch

Ounces US Cups Metric Cup Imperial Cup
0.85 ounces 0.19 cups 0.18 cups 0.16 cups
1 ounce 0.22 cups 0.21 cups 0.18 cups
2 ounces 0.44 cups 0.42 cups 0.37 cups
3 ounces 0.66 cups 0.63 cups 0.55 cups
4 ounces 0.89 cups 0.84 cups 0.74 cups
5 ounces 1.11 cups 1.05 cups 0.92 cups
6 ounces 1.33 cups 1.26 cups 1.11 cups
8 ounces 1.77 cups 1.68 cups 1.48 cups
10 ounces 2.21 cups 2.10 cups 1.84 cups
12 ounces 2.66 cups 2.52 cups 2.21 cups
16 ounces 3.54 cups 3.35 cups 2.95 cups

Understanding the Units

What is an Ounce?

Weight ounces and fluid ounces are different measurements. A fluid ounce measures volume (29.574 ml), while an ounce measures weight (28.35g). They only align for water, where 1 fl oz weighs approximately 1 oz.

What is a Cup?

The US cup (236.588 ml) is slightly smaller than the metric cup used in Australia and some other countries (250 ml). When following recipes from different countries, check which cup standard is being used.

Frequently Asked Questions

About 0.19 cups, based on cornstarch having a density of 128g per cup. The exact amount depends on how the ingredient is measured and the specific product.
First convert ounces to grams (1 ounce = 28.3495g), then divide by 128 (grams per cup). For 0.85 ounces: 0.85 × 28.3495 = 24.10g, then 24.10 ÷ 128 = 0.19 cups.
For the most accurate results, weigh cornstarch on a kitchen scale. If measuring by volume, sift or whisk first to break up clumps, then spoon into the measuring cup and level off. Do not scoop directly from the bag.
Yes, quite a bit. If you spoon the flour into your measuring cup and level it off, you will get about 128 grams per cup. If you dip directly into the flour bag and sweep level, the flour packs tighter and you can end up with 140.8 to 160 grams per cup instead. This conversion uses the spoon-and-level method, which is the standard most baking references follow.
Reverse the conversion: 0.19 cups × 128g/cup = 24.10g, then 24.10g ÷ 28.3495 = 0.85 ounces. Or use the Cups to Ounces converter.