355 milliliters (ml) is approximately 12 ounces (oz). This conversion is based on the standard conversion factor where 1 fluid ounce is equal to about 29.5735 milliliters. To convert 355 ml to ounces, you divide the volume in milliliters by 29.5735. So, 355 ml ÷ 29.5735 ≈ 12 oz. This is a common conversion used in recipes and for measuring beverages.