Liquids
Convert cups of milk to ounces
One cup of milk weighs about 8.61 oz, and half a cup comes to roughly 4.3 oz. Enter any amount below to convert it, or use the chart further down as a quick reference while you cook.
1 cup of milk =
8.61 oz
- kg
- 0.244
- lb
- 0.538
Milk: 244 g per US cup · USDA FoodData Central. Whole, 2% and skim milk vary by only 1–2 g per cup, so one figure is fine for all of them.
Full milk chart →Milk at a glance
Every number on this page comes from a single figure: 244 grams per US cup (USDA FoodData Central).
- 1 cup
- 244 g
- 1 tablespoon
- 15.3 g
- 1 teaspoon
- 5.08 g
- 1 cup in ounces
- 8.61 oz
- 100 g in cups
- 0.41 cups
- Density
- 1.03 g/ml
cups to ounces chart for milk
Print it, screenshot it, or bookmark this page — these are the amounts recipes ask for most often.
| Cups (US) | Grams | Ounces (weight) | Pounds |
|---|---|---|---|
| 1/8 cup | 30.5 g | 1.08 oz | 0.067 lb |
| 1/4 cup | 61 g | 2.15 oz | 0.134 lb |
| 1/3 cup | 81.3 g | 2.87 oz | 0.179 lb |
| 1/2 cup | 122 g | 4.3 oz | 0.269 lb |
| 2/3 cup | 163 g | 5.74 oz | 0.359 lb |
| 3/4 cup | 183 g | 6.46 oz | 0.403 lb |
| 1 cup | 244 g | 8.61 oz | 0.538 lb |
| 1 1/2 cup | 366 g | 12.9 oz | 0.807 lb |
| 2 cup | 488 g | 17.2 oz | 1.08 lb |
| 3 cup | 732 g | 25.8 oz | 1.61 lb |
| 4 cup | 976 g | 34.4 oz | 2.15 lb |
How this conversion is calculated
Volume-to-weight conversions are only as good as the density behind them. We treat milk as 244 g per US customary cup, which works out to 1.031 g/ml. From there:
- Your cups figure is converted into millilitres or grams using standard unit sizes (cup = 237 ml).
- The density above bridges volume and weight in whichever direction you need.
- The result is rounded the way a cook would round it — to the nearest gram, or to a usable fraction such as 3/8 cups.
Measuring milk accurately
Whole, 2% and skim milk vary by only 1–2 g per cup, so one figure is fine for all of them.
If a recipe matters to you — bread, macarons, anything with a tight hydration or ratio — weigh it. A £10 digital scale removes the single largest source of variation in home baking, and it is faster than washing three measuring cups.
When cups are fine
- Liquids measured in a proper jug, where volume is the honest unit anyway.
- Forgiving savoury cooking: soups, stews, stir-fries, marinades.
- Small amounts of leaveners and spices, as long as you use level spoons.
Frequently asked questions
How many ounces are in 1 cup of milk?
1 cup of milk is 8.61 oz. This is based on a density of 244 g per US cup.
How many ounces are in 2 cups of milk?
2 cups of milk is 17.2 oz, and 4.3 oz for half a cup.
How much is 100 g of milk in cups?
100 g of milk is about 3/8 cups. Weight is always the more reliable measurement, so use a scale when the recipe gives grams.
Why do other sites give a different number for milk?
Whole, 2% and skim milk vary by only 1–2 g per cup, so one figure is fine for all of them.
Do UK and Australian cups give the same result?
No. A US customary cup is 236.6 ml, a metric cup used in Australia and New Zealand is 250 ml, and an old UK imperial cup is 284 ml. Our default is the US cup, but you can pick metric cups in the converter.