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fluid ounce

Convert U.S. fluid ounces to other major units of capacity

Print a chart for converting between U.S. fluid ounces and milliliters.

1

In the United States, the U.S. fluid ounce is a unit of liquid capacity, approximately 29.5735 milliliters. Symbol, fl oz.

2

In British imperial measure, the imperial fluid ounce is a unit of capacity, approximately 28.413 milliliters. Symbol, fl oz. Symbol used in pharmacies, . It is the volume of 1 avoirdupois ounce of water at 62° F.

One U.S. fluid ounce is 1.041 imperial fluid ounces.

Among other roles, the imperial fluid ounce figured in British apothecaries’ measure.