Cup & Gram

400 ml to Cups

400 ml is 1.69 US cups — in the kitchen, measure 1 cup + 11 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, 400 ml is 1.6 cups instead.

How many cups is 400 ml?

400 ml in every kitchen unit
US cups (exact)1.69 cups
Kitchen measure1 cup + 11 tbsp
Tablespoons27.1 tbsp
Teaspoons81 tsp
US fluid ounces13.5 fl oz
Metric cups (250 ml)1.6 cups

What does 400 ml weigh?

Millilitres measure volume, so the weight depends entirely on what you are measuring. At 400 ml:

400 ml of common ingredients, by weight
IngredientWeight
Flour 203 g
Sugar 338 g
Powdered Sugar 203 g
Brown Sugar 360 g
Honey 575 g
Butter 384 g
Milk 414 g
Rice 313 g

Water is the one case where the two match: 400 ml of water weighs about 400 g.

Nearby amounts

Millilitres to US cups
mlCups (exact)Kitchen measure
250 ml 1.06 1 cup
300 ml 1.27 1 ¼ cups
350 ml 1.48 1 ½ cups
450 ml 1.9 1 ⅞ cups
500 ml 2.11 2 ⅛ cups
600 ml 2.54 2 ½ cups

Convert another amount

400 ml = 1.691 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.