swap_horiz Need Grams to Cups instead?

How Much Is 0.78 Cups of Cornstarch in Grams?

0.78 cups of cornstarch equals 99.84 g. Cornstarch has a density of 128g per cup (128g per cup), which means it's relatively light compared to other common cooking ingredients. For comparison, 0.78 cups of honey would be 265.2 g.

0.78 cups of cornstarch
=
99.84g
Result using all cup standards info
99.84 g (US) 105.50 g (Metric Cup) 119.90 g (Imperial Cup)
0.78 cups of cornstarch is also
99.84

Formula and Step-by-Step

cups × 128g/cup = grams
  1. Start with 0.78 cups of cornstarch
  2. 1 cup of cornstarch = 128g
  3. 0.78 × 128 = 99.84g

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 cups measurements. Your amount (0.78 cups) is highlighted.

0.25 cups32 g0.33 cups42.24 g0.5 cups64 g0.75 cups96 g0.78 cups99.84 g1 cup128 g1.5 cups192 g2 cups256 g

For reference, 0.78 cups of cornstarch (99.84g) is close in weight to a computer mouse (100g).

Other Amounts of Cornstarch

Cups US Grams Metric Cup Imperial Cup
0.25 cups 32.00 g 33.81 g 38.43 g
0.33 cups 42.24 g 44.63 g 50.73 g
0.5 cups 64.00 g 67.63 g 76.86 g
0.75 cups 96.00 g 101.44 g 115.29 g
0.78 cups 99.84 g 105.50 g 119.90 g
1 cup 128.00 g 135.26 g 153.72 g
1.5 cups 192.00 g 202.88 g 230.58 g
2 cups 256.00 g 270.51 g 307.44 g
3 cups 384.00 g 405.77 g 461.17 g
4 cups 512.00 g 541.02 g 614.89 g
5 cups 640.00 g 676.28 g 768.61 g

Understanding the Units

What is a Cup?

A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.

What is a Gram?

A gram (g) is a metric unit of mass equal to 1/1000 of a kilogram. It is the standard weight measurement for precise baking worldwide. Professional bakers prefer grams because they are more accurate than volume measurements.

Frequently Asked Questions

About 99.84 g, based on cornstarch having a density of 128g per cup. The exact amount depends on how the ingredient is measured and the specific product.
Multiply the number of cups by 128 (grams per cup for cornstarch). For 0.78 cups: 0.78 × 128 = 99.84 g.
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: 99.84 g ÷ 128 = 0.78 cups. Or use the Grams to Cups converter.