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Whole Milk: cups to grams

1 US cup of whole milk
245 grams
Density 1.04 g per mL · 8.6 oz

Milk is slightly denser than water because of its dissolved sugars and proteins, so a cup weighs a little more than the equivalent volume of water.

Whole Milk cups to grams

Cups Grams Ounces
⅛ cup 31 g 1.08 oz
¼ cup 61 g 2.16 oz
⅓ cup 82 g 2.88 oz
½ cup 123 g 4.32 oz
⅔ cup 163 g 5.76 oz
¾ cup 184 g 6.48 oz
1 cup 245 g 8.64 oz
1½ cups 368 g 12.96 oz
2 cups 490 g 17.28 oz
3 cups 735 g 25.93 oz
4 cups 980 g 34.57 oz

Whole Milk grams to cups

Grams Cups Tbsp
25 g 0.10 1.6
50 g 0.20 3.3
100 g 0.41 6.5
125 g 0.51 8.2
150 g 0.61 9.8
200 g 0.82 13.1
250 g 1.02 16.3
300 g 1.22 19.6
400 g 1.63 26.1
500 g 2.04 32.7
Measuring tip. The difference from water is only about 3%, so substituting the two by volume is fine in most everyday cooking.

Cup standards compared

US cup (236.59 mL)
245 g
per cup of whole milk
US legal cup (240 mL)
249 g
per cup of whole milk
Metric cup (250 mL)
259 g
per cup of whole milk

Convert cooking volumes

The charts above cover weight. If you also need to move between cups, decilitres, millilitres and spoons, this converts any volume:

Result2.37

1 cup (US) in every unit

Metric
Millilitres236.6
Centilitres23.66
Decilitres2.37
Litres0.237
Teaspoons (metric)47.32
Tablespoons (metric)15.77
Cups (metric, 250 ml)0.946
US
Teaspoons (US)48
Tablespoons (US)16
Fluid ounces (US)8
Cups (US, 236.6 ml)1
Pints (US)0.5
Quarts (US)0.25
Gallons (US)0.0625
UK
Teaspoons (UK)39.97
Tablespoons (UK)13.32
Fluid ounces (UK)8.33
Pints (UK)0.416

A US cup is 236.6 ml, a metric cup is 250 ml and a UK tablespoon is larger than a US one — so the system your recipe was written in matters. Pick the matching unit rather than assuming.

Questions

How many grams is 1 cup of whole milk?

One US cup of whole milk weighs 245 grams. That works out to a density of about 1.04 g per mL.

How many cups is 100 g of whole milk?

100 g of whole milk is about 0.41 cups, or roughly 6.5 tablespoons.

Why can’t I convert cups to grams directly?

A cup measures volume and a gram measures weight, so the conversion depends entirely on the ingredient. A cup of whole milk is 245 g, but a cup of honey is 340 g and a cup of cocoa powder is only 84 g.

Does the cup size matter?

Yes. A US customary cup is 236.59 mL, a US legal cup is 240 mL and a metric cup is 250 mL. Using a metric cup for whole milk gives 259 g instead of 245 g — about 6 percent more.

Other ingredients