Unit conversions

fluid ounces to mL

1 US fluid ounce equals 29.5735 milliliters. Formula: milliliters = fluid ounces × 29.5735.

= 236.59 mL

Other direction: mL to fluid ounces

Formula

milliliters = fluid ounces × 29.5735

Example: 8 fl oz = 236.59 mL.

When you need fluid ounces to mL

Cocktail recipes are the classic case: a standard 1.5 oz jigger is about 44 mL, and a 2 oz pour is about 59 mL. Skincare and drink sizes follow the same math — a 4 oz lotion bottle is about 118 mL, and a 12 oz soda is about 355 mL.

The US customary cup is 8 fl oz, which converts to about 236.6 mL; metric recipes usually round that to 240 mL or simply use 250 mL. If precision matters in baking, weigh ingredients in grams instead.

Common fl oz to mL values

US fluid ounces (fl oz)Milliliters (mL)
0.514.7868
129.5735
1.544.3603
259.1471
4118.29
8236.59
12354.88
16473.18
32946.35

FAQ

How many mL is 1 fluid ounce?

One US fluid ounce is 29.5735 mL — about 30 mL for everyday estimates. A 1.5 oz cocktail jigger is about 44 mL.

Is one cup 8 ounces, and how many mL is that?

The US customary cup is 8 fl oz, which is about 236.6 mL. Recipe writers often round to 240 mL, and metric cups are 250 mL — close but not identical.

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