mL to Oz Converter

1 US fluid ounce equals exactly 29.5735295625 mL, which this converter displays as approximately 29.5735 mL. The same factor gives approximately 236.59 mL per customary cup, 14.79 mL per US tablespoon, and 4.93 mL per US teaspoon. Use the full factor when precision matters.

No. 1 US fluid ounce is approximately 29.5735 mL and 1 UK imperial fluid ounce is approximately 28.4131 mL, a difference of about 4 percent. A 20 imperial fluid ounce UK pint is approximately 568 mL, while a 16 US fluid ounce pint is approximately 473 mL.

A standard US soda can is 12 US fl oz = 355 mL. A US pint glass (often used for craft beer) is 16 US fl oz = 473 mL. A typical disposable water bottle is 500 mL = 16.907 US fl oz. A large bottle is 1 L = 33.814 US fl oz, and a 2 L soda bottle is 67.628 US fl oz. A standard wine bottle is 750 mL = 25.36 US fl oz, and a US spirits shot is 1.5 fl oz = 44.36 mL. Coffee shop sizing is fuzzier: a Starbucks Tall is 12 fl oz (355 mL), Grande is 16 fl oz (473 mL), and Venti hot is 20 fl oz (591 mL) while Venti iced is 24 fl oz (710 mL).

Rounded recipe-friendly values are approximately 237 mL per customary cup, 118 mL per half cup, 79 mL per third cup, 59 mL per quarter cup, 15 mL per US tablespoon, and 5 mL per US teaspoon. More precise approximations are 236.59 mL, 118.29 mL, 78.86 mL, 59.15 mL, 14.79 mL, and 4.93 mL.

A fluid ounce measures volume (about 29.57 mL in the US), while a weight ounce measures mass (28.35 g). For water at room temperature the two happen to roughly match: 1 US fl oz of water weighs about 1.04 oz by weight, close enough that the words get used interchangeably. For other substances the relationship breaks. 1 fl oz of honey weighs about 1.5 oz by weight (honey density is around 1.42 g/mL), while 1 fl oz of olive oil weighs about 0.95 oz (oil density is around 0.91 g/mL). Always check whether a label or recipe asks for fluid ounces (volume) or ounces (weight); this converter handles volume only.