Home› Cooking› Ounces of Water to Cups
Cooking conversion
Ounces of Water to Cups
How many cups of water are in a given weight? Type a number of ounces below to see the volume. Math uses water's density of 1.000 g/mL.
Calculator
100 oz of water = 11.9827 cup
Ounces of Water to Cups Conversion Table
Common values for water:
| Ounces of water | Cups |
|---|---|
| 10 oz | 1.1983 cup |
| 25 oz | 2.9957 cup |
| 50 oz | 5.9913 cup |
| 100 oz | 11.9827 cup |
| 150 oz | 17.974 cup |
| 200 oz | 23.9653 cup |
| 250 oz | 29.9566 cup |
| 500 oz | 59.9133 cup |
| 1000 oz | 119.83 cup |
How this works
Water has a density of about 1.000 g/mL (si definition). That means 1 mL of water weighs 1.000 grams.
Cups = ounces × 0.1198
Note: By definition at 4°C. Within 0.5% across cooking temperatures.
Why a cup of water doesn't always weigh the same
Volume measurements are forgiving in some ways and brutal in others. A cup of water can vary by 10-20% in weight depending on how it's measured: spooned vs scooped, packed vs loose, sifted vs unsifted. The density figure used here matches the most common published recipe conventions, but if you're after baking precision, weighing on a kitchen scale is more accurate than measuring by volume.