Cup & Gram

300 ml to Cups

300 ml is 1.27 US cups — in the kitchen, measure 1 cup + 4 tbsp. One US cup is 236.588 ml, so millilitres rarely land on a round cup fraction; the practical measure above is the closest you can actually scoop.

Measuring cups vary by country: this answer uses the US customary cup of 236.588 ml. Against a 250 ml metric cup, 300 ml is 1.2 cups instead.

How many cups is 300 ml?

300 ml in every kitchen unit
US cups (exact)1.27 cups
Kitchen measure1 cup + 4 tbsp
Tablespoons20.3 tbsp
Teaspoons61 tsp
US fluid ounces10.1 fl oz
Metric cups (250 ml)1.2 cups

What does 300 ml weigh?

Millilitres measure volume, so the weight depends entirely on what you are measuring. At 300 ml:

300 ml of common ingredients, by weight
IngredientWeight
Flour 152 g
Sugar 254 g
Powdered Sugar 152 g
Brown Sugar 270 g
Honey 431 g
Butter 288 g
Milk 311 g
Rice 235 g

Water is the one case where the two match: 300 ml of water weighs about 300 g.

Nearby amounts

Millilitres to US cups
mlCups (exact)Kitchen measure
200 ml 0.85 ⅞ cup
240 ml 1.01 1 cup
250 ml 1.06 1 cup
350 ml 1.48 1 ½ cups
400 ml 1.69 1 ⅔ cups
450 ml 1.9 1 ⅞ cups

Convert another amount

300 ml = 1.268 cup

More: the full ml-to-cups chart · cups to ml · cups to grams by ingredient

1 US cup = 236.588 ml; metric cup = 250 ml; US legal cup = 240 ml. Ingredient weights from the open density dataset. Data verified 2026-08-20. Methodology.