Milliliters to Cups: Cornstarch Converter

Convert cornstarch between milliliters and cups using its measured density of about 112 g per cup. The widget below is pre-set to this exact conversion and recalculates as you type.

Converted amount

0cup

1 ml of cornstarch = 0 cup

Exact weight

0.5 g

Ounces

0.02 oz

Milliliters

1 ml

Kitchen measure

0.2 tsp

1 cup of cornstarch weighs about 112 g. Densities are averages — sifted flour is lighter, packed sugar is heavier. Fractions such as 1 1/2 or 3/4 are supported.

0 cup is the same as 0.2 tsp.

Cornstarch conversion chart

Milliliters to Cups, rounded for the kitchen.

MillilitersGramsCups
50 ml23.7 g3 tbsp + 1 1/4 tsp
100 ml47.3 g6 tbsp + 2 1/4 tsp
150 ml71 g10 tbsp + 1/2 tsp
200 ml94.7 g13 tbsp + 1 1/2 tsp
250 ml118.3 g1 cup + 1 tbsp
300 ml142 g1 cup + 4 1/2 tbsp
400 ml189.4 g1 cup + 11 tbsp
500 ml236.7 g2 cups + 2 tbsp

How to convert milliliters to cups for cornstarch

Ingredient conversion is a two-step calculation. First, milliliters are turned into grams using cornstarch's density of about 112 g per cup, or its exact weight factor for milliliters. Then those grams are expressed in cups. Because every conversion passes through weight, the result is consistent whether you start from cups, tablespoons, milliliters, or ounces.

Density is the reason a universal "cups to grams" number does not exist. A cup of sifted all-purpose flour is about 120 g, while a cup of granulated sugar is about 200 g and a cup of honey about 340 g. Using one ingredient's density for another is the most common cause of dry cakes and dense breads, so always confirm the ingredient selected above matches what is in your bowl.

For the most repeatable results, weigh cornstarch on a digital scale instead of relying on volume. If you are scaling a whole recipe, use the recipe scaler to multiply every ingredient at once, then verify individual amounts with this converter.

Frequently asked questions

How many grams is a cup of cornstarch?

One US cup of cornstarch weighs about 112 grams (3.95 oz). That density is what this converter uses, so volume and weight results stay consistent for every measurement on the page.

How many cups is 100 ml of cornstarch?

100 ml of cornstarch equals about 0.42 cup (6 tbsp + 2 1/4 tsp), or 47.3 grams. Use the converter above for any other amount.

Why does cornstarch convert differently from other ingredients?

Weight-to-volume conversions depend on ingredient density. A cup of cornstarch weighs about 112 g, while a cup of granulated sugar weighs about 200 g and a cup of water 237 g. That is why a single "cups to grams" number cannot apply to every ingredient.

Are these Milliliters to Cups conversions exact?

They use standard average densities for cornstarch (about 112 g per cup). Actual weight varies with how the ingredient is packed, sifted, or ground, so weigh on a digital scale when a recipe is sensitive to hydration or leavening.