How Much Is 1 Cup of Milk in Ounces?
1 cup of milk weighs 8.61 oz. This is based on milk having a density of 244g per cup. Because cups measure volume and ounces measure weight, the result depends on the ingredient, and a different ingredient would give a different result for the same 1 cup.
Formula and Step-by-Step
- Start with 1 cup of milk
- 1 cup of milk = 244g
- 1 × 244 = 244g
- Convert grams to ounces: 244 ÷ 28.3495 = 8.61 oz
The same formula works for any amount. Multiply (or divide) by the density, then convert units as needed.
Measuring Tip
For liquids, place your measuring cup on a flat surface and read at eye level. The bottom of the meniscus (the curve at the surface) should align with the measurement line.
Milk at Different Amounts
How milk scales across common cups measurements. Your amount (1 cup) is highlighted.
For reference, 1 cup of milk (244g) is close in weight to a cup of water (237g).
Other Amounts of Milk
| Cups | US Ounces | Metric Cup | Imperial Cup |
|---|---|---|---|
| 0.25 cups | 2.15 oz | 2.27 oz | 2.58 oz |
| 0.33 cups | 2.84 oz | 3.00 oz | 3.41 oz |
| 0.5 cups | 4.30 oz | 4.55 oz | 5.17 oz |
| 0.75 cups | 6.46 oz | 6.82 oz | 7.75 oz |
| 1 cup | 8.61 oz | 9.09 oz | 10.34 oz |
| 1.5 cups | 12.91 oz | 13.64 oz | 15.50 oz |
| 2 cups | 17.21 oz | 18.19 oz | 20.67 oz |
| 3 cups | 25.82 oz | 27.28 oz | 31.01 oz |
| 4 cups | 34.43 oz | 36.38 oz | 41.35 oz |
| 5 cups | 43.03 oz | 45.47 oz | 51.68 oz |
Understanding the Units
What is a Cup?
A cup is a US customary unit of volume equal to 236.588 milliliters or 8 fluid ounces. It is the most common volume measurement in American recipes. One cup can be divided into 16 tablespoons or 48 teaspoons.
What is an Ounce?
An ounce (oz) is a US customary unit of weight equal to 28.3495 grams or 1/16 of a pound. In cooking, "ounces" refers to weight (avoirdupois ounces), not fluid ounces which measure volume.