128g Cornstarch in Cups
128 grams of cornstarch is 1 cup — 128g per US cup. Shortbread, custards and large fruit fillings use cornstarch in this range, where it replaces part of the flour to soften the crumb.
How many cups is 128g of cornstarch?
128 grams of cornstarch equals:
Measuring by hand? That is 1 cup.
Cornstarch compacts in the box. Spoon it into the measure and level it, and always slurry it with cold liquid before it meets heat.
Grams to Cups Converter
Quick select
128 grams of Cornstarch is about 1 cup, using a 236.588 millilitre cup at 128 grams per cup.
Reading
- cup
- 1.00
- tbsp
- 16.0
- tsp
- 48.0
US customary cup (236.588ml) · 128g per cup
Dedicated conversion guides use the default US customary cup.
Applies to this page only — the database value (128g per US cup) is unchanged.
128g of cornstarch vs other ingredients
Grams measure weight and cups measure volume, so the same 128 grams fills a different amount of cup for every ingredient:
| Ingredient | 128g in cups | g per cup |
|---|---|---|
| Cornstarch | 1 cup | 128 |
| All-Purpose Flour | 1 cup | 125 |
| Granulated Sugar | ⅝ cup | 200 |
| Butter | ⅝ cup | 227 |
Browse every charted amount in the grams to cups directory.
Nearby cornstarch amounts
Full ladder on the cornstarch grams to cups chart.
Frequently Asked Questions
How many cups is 128g of cornstarch?
128 grams of cornstarch is 1 cup. In kitchen measures that is 1 cup, worked out from 128 grams per US cup.
How many grams are in 1 cup of cornstarch?
One US cup of cornstarch weighs about 128 grams, one tablespoon about 8 grams, and one teaspoon about 2.67 grams. This page divides 128 grams by that cup weight.
Is 128g of cornstarch the same as 128g of all-purpose flour?
No. 128g of cornstarch is 1 cup, while 128g of all-purpose flour is 1 cup. Same weight on the scale, different volume in the cup, because the two have different densities.
How do I measure 128g of cornstarch without a scale?
Use 1 cup. Cornstarch compacts in the box. Spoon it into the measure and level it, and always slurry it with cold liquid before it meets heat.
Is it better to weigh cornstarch or measure it in cups?
Weighing is more accurate, especially in baking, because it removes the variation in how the cornstarch is packed into the cup. If you have no scale, use the cup figure above and keep your measuring method consistent across the whole recipe.