Milliliters to Cups: Rolled Oats Converter

Convert rolled oats between milliliters and cups using its measured density of about 80 g per cup. The widget below is pre-set to this exact conversion and recalculates as you type.

Converted amount

0cup

1 ml of rolled oats = 0 cup

Exact weight

0.3 g

Ounces

0.01 oz

Milliliters

1 ml

Kitchen measure

0.2 tsp

1 cup of rolled oats weighs about 80 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.

Rolled Oats conversion chart

Milliliters to Cups, rounded for the kitchen.

MillilitersGramsCups
50 ml16.9 g3 tbsp + 1 1/4 tsp
100 ml33.8 g6 tbsp + 2 1/4 tsp
150 ml50.7 g10 tbsp + 1/2 tsp
200 ml67.6 g13 tbsp + 1 1/2 tsp
250 ml84.5 g1 cup + 1 tbsp
300 ml101.4 g1 cup + 4 1/2 tbsp
400 ml135.3 g1 cup + 11 tbsp
500 ml169.1 g2 cups + 2 tbsp

How to convert milliliters to cups for rolled oats

Ingredient conversion is a two-step calculation. First, milliliters are turned into grams using rolled oats's density of about 80 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 rolled oats 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 rolled oats?

One US cup of rolled oats weighs about 80 grams (2.82 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 rolled oats?

100 ml of rolled oats equals about 0.42 cup (6 tbsp + 2 1/4 tsp), or 33.8 grams. Use the converter above for any other amount.

Why does rolled oats convert differently from other ingredients?

Weight-to-volume conversions depend on ingredient density. A cup of rolled oats weighs about 80 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 rolled oats (about 80 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.