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How to Convert Fluid Ounces to Milliliters

Multiply the US fluid ounce value by 29.5735. One US fluid ounce equals exactly 29.5735295625 mL.

Fluid Ounces to Milliliters Conversion Table

Fluid OuncesMilliliters
0.514.7867
129.5735
259.147
5147.868
10295.735
15443.602
20591.47
25739.337
501478.67
1002957.35
2507393.38
50014786.8
100029573.5

How Many Milliliters in a Fluid Ounce?

1 fluid ounce equals 29.5735 milliliters. To convert any value, multiply the number of fluid ounces by 29.5735.

Common Use Cases

Baristas measuring espresso shots and milk portions convert fluid ounces to milliliters when using precision scales and graduated pitchers. A standard double espresso is about 2 fl oz (59.15 mL), and specialty coffee shops that aim for exact brew ratios rely on milliliter measurements for consistency across every drink they serve.

Parents measuring liquid medications for children encounter dosing cups marked in milliliters but instructions printed in fluid ounces on US product labels. A 1 fl oz dose of children's cough syrup equals about 29.6 mL, and using the correct conversion prevents accidental under- or over-dosing, which is a genuine pediatric safety concern.

Cosmetics formulators developing skincare products convert ingredient volumes from fluid ounces (common in US supplier catalogs) to milliliters for manufacturing batch sheets. A serum recipe calling for 4 fl oz of carrier oil needs exactly 118.29 mL, and precision at this stage ensures product consistency, proper labeling, and regulatory compliance.

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