US Fluid Ounces to mL Converter | US fl oz to Milliliters

1 US fluid ounce = 29.5735 milliliters.

Use our free US fluid ounces to mL converter below to convert any amount instantly for recipes, drinks, and more.

Note: This is the US customary fluid ounce used for liquids in the United States. It’s different from UK fluid ounces. 1 UK fl oz = 28.4131 mL.

Just enter your value and get the exact result in seconds.

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US Fluid Ounces to mL Converter

Convert US fluid ounces (fl oz) to milliliters (mL), or mL to US fluid ounces, instantly.

Amount

US fluid ounces → mL mL → US fluid ounces

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Result

29.5735 mL

1 US fl oz × 29.5735295625 = 29.5735 mL

Common conversions

1 fl oz 2 fl oz 4 fl oz 8 fl oz 12 fl oz 16 fl oz

How to Convert US Fluid Ounces to mL

Converting US fluid ounces (fl oz) to mL (milliliters) is very straightforward.

1 US fluid ounce = 29.5735 milliliters (The exact conversion is 1 US fl oz = 29.5735296 mL.) For everyday use, most people round this to 29.57 mL or even 30 mL for quick estimates.

The Formula: To convert any amount of fluid ounces to milliliters, use this formula:

Examples:

• 1 US fl oz = 1 × 29.5735 = 29.57 mL
• 2 fl oz = 2 × 29.5735 = 59.15 mL
• 4 fl oz = 4 × 29.5735 = 118.29 mL
• 8 fl oz (1 cup) = 8 × 29.5735 = 236.59 mL
• 12 fl oz (standard soda can) = 12 × 29.5735 = 354.88 mL
• 16.9 fl oz (standard water bottle) = 16.9 × 29.5735 = 500 mL (exactly)

For a quick estimate, you can use 1 US fl oz ≈ 30 mL.

US Fluid Ounces to mL Conversion Chart

Here is a comprehensive chart for converting US fluid ounces to milliliters.

US fluid ounces	Exact mL	Rounded mL
0.5 fl oz	14.7868 mL	15 mL
1 fl oz	29.5735 mL	30 mL
2 fl oz	59.1471 mL	60 mL
3 fl oz	88.7206 mL	89 mL
4 fl oz	118.2941 mL	118 mL
5 fl oz	147.8676 mL	148 mL
6 fl oz	177.4412 mL	177 mL
7 fl oz	207.0147 mL	207 mL
8 fl oz	236.5882 mL	237 mL
10 fl oz	295.7353 mL	296 mL
12 fl oz	354.8824 mL	355 mL
16 fl oz	473.1765 mL	473 mL
20 fl oz	591.4706 mL	591 mL
24 fl oz	709.7647 mL	710 mL
32 fl oz	946.3529 mL	946 mL
64 fl oz	1,892.7059 mL	1893 mL

If you’re cooking, use 29.57 mL for accuracy. For cooking, a “US customary” ounce is the standard measure.

If you’re reading a nutrition facts panel, expect 30 mL per ounce! For nutrition labels, the FDA defines a “food labeling” ounce as exactly 30 mL to simplify serving sizes.

Common Examples in the US

Here are some common everyday examples of US fluid ounce (fl oz) measurements people encounter in everyday life:

Drinks & Beverages:

• Medicine cup = 1 fl oz = 29.57 mL
• 1 shot = 1.5 fl oz = 44.36 mL
• Small soda can = 8 fl oz = 237 mL (~1 cup)
• Standard soda can = 12 fl oz = 354.88 mL
• A large water bottle = 16.9 fl oz = 500 mL (exact retail size)
• A venti iced coffee (Starbucks) = 24 fl oz = 710 mL
• A large soda from a fast-food chain = 32 fl oz = 946 mL (~1 quart)

Cooking & Baking:

• 1 tablespoon = 0.5 fl oz
• 1 cup = 8 fl oz = 236.6 mL

US fl oz vs UK fl oz—Important!

US fluid ounces and UK (Imperial) fluid ounces are not the same. Don’t mix these up in recipes.

• US: 1 fl oz = 29.5735 mL
• UK: 1 fl oz = 28.4131 mL

US fluid ounces are approximately 4% larger (about 1.1604 mL) than a UK fluid ounce.

So, if you use a US measuring cup for a British cake recipe, you are not only using the wrong ounce size but also the wrong amount of ounces per cup.

• A US recipe calls for 1 cup = 8 fluid ounces.
• A UK recipe calls for 1 cup = 10 fluid ounces (since their cup is larger).

How to Convert mL to US Fluid Ounces

Converting milliliters (mL) back to US fluid ounces (fl oz) is just as easy—you simply reverse the formula.

Examples:

• 237 mL (common juice box) = 237 ÷ 29.57 = 8.01 fl oz (exactly 1 cup)
• 500 mL (standard water bottle) = 500 ÷ 29.57 = 16.91 fl oz
• 750 mL (wine bottle) = 750 × 0.0338 = 25.36 fl oz

Important Reminder: This is for US fluid ounces only. Imperial (UK) fluid ounces are different. For anything in the US, always use divide by 29.57.

Quick Reference Chart for mL to US Fluid Ounces:

Milliliters (mL)	US Fluid Ounces (fl oz)
1 mL	0.0338 fl oz
10 mL	0.3381 fl oz
30 mL	1.0144 fl oz
50 mL	1.6907 fl oz
100 mL	3.3814 fl oz
250 mL	8.4535 fl oz
355 mL	12.0040 fl oz
473 mL	15.9940 fl oz
500 mL	16.9070 fl oz
1000 mL (1 liter)	33.8140 fl oz

If you don’t need exact precision, just divide by 30 (e.g., 240 mL ÷ 30 = 8 fl oz). This gives you a close estimate that’s only about 1.5% off—perfect for cooking or casual use.

Frequently Asked Questions