Fluid ounce (US) (fl oz)

Exactly 1/128 of a US gallon.

What is a US fluid ounce?

Symbol: fl oz
Quantity: Volume
Unit system: US customary
Definition: Exactly 1/128 of a US gallon.
Exact: Yes, the value is exact by definition
Source: NIST Special Publication 811 (2008), Appendix B.8 (US liquid measures derive from the exact 231 cubic inch gallon)

Used in the United States for drink sizes, bottles and liquid products. It is slightly larger than the imperial fluid ounce.

Fluid ounce (US) in other units
Fluid ounce (US)	Milliliter	Liter	Gallon (US liquid)
1 fl oz	= 29.5735295625 mL	= 0.0295735295625 L	= 0.0078125 gal
10 fl oz	= 295.735295625 mL	= 0.295735295625 L	= 0.078125 gal
100 fl oz	= 2957.35295625 mL	= 2.95735295625 L	= 0.78125 gal
1000 fl oz	= 29573.5295625 mL	= 29.5735295625 L	= 7.8125 gal

The next smaller volume unit is the imperial fluid ounce (imp fl oz). 1 fl oz ≈ 1.040842731 imp fl oz, and 1 imp fl oz ≈ 0.9607599404 fl oz.

The next larger volume unit is the US cup (cup). 1 fl oz = 0.125 cup, and 1 cup = 8 fl oz.

How many milliliters are in one US fluid ounce?: One US fluid ounce = 29.5735295625 mL (milliliters).
How many liters are in one US fluid ounce?: One US fluid ounce = 0.0295735295625 L (liters).
How many US gallons are in one US fluid ounce?: One US fluid ounce = 0.0078125 gal (US gallons).