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Water — Ounces in Milliliters
1 ounce of water equals 28 milliliters*
About water measurements
Water is the reference point for every other ingredient here, with a density of 1.0 g/ml, so one US cup is 237 g. It peaks near 1.000 g/ml at about 4°C and thins slightly as it warms, so hot water measured by volume weighs a touch less than cold.

Ounces of water equivalent in milliliters?
FAQs on water weight to volume conversion
1 ounce of water equals how many milliliters?
1 ounce of water is equivalent 28 milliliters.
How much is 28 milliliters of water in ounces?
28 milliliters of water equals 1 ounce.
Ounces to Milliliters of Water Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| Ounces to milliliters of Water | |
|---|---|
| 1.77 milliliters | |
| 3.54 milliliters | |
| 7.09 milliliters | |
| 9.45 milliliters | |
| 14.2 milliliters | |
| 18.9 milliliters | |
| 21.3 milliliters | |
| 1 ounce | 28.3 milliliters |
| 1 | 30.1 milliliters |
| 1 | 31.9 milliliters |
| 1 | 35.4 milliliters |
| 1 | 37.8 milliliters |
| 1 | 42.5 milliliters |
| 1 | 47.2 milliliters |
| 1 | 49.6 milliliters |
| 2 ounces | 56.7 milliliters |
| 2 | 58.5 milliliters |
| 2 | 60.2 milliliters |
| 2 | 63.8 milliliters |
| 2 | 66.1 milliliters |
| 2 | 70.9 milliliters |
| 3 ounces | 85 milliliters |
| 4 ounces | 113 milliliters |
| 5 ounces | 142 milliliters |
| 6 ounces | 170 milliliters |
| 8 ounces | 227 milliliters |
| 10 ounces | 283 milliliters |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.