Convert milliliters to US fluid ounces, both ways.
Type a volume in milliliters and read the exact US fluid ounces, or type fluid ounces to convert back. The result updates live, with teaspoons, tablespoons and cups for context and a one-click copy.
Your volume
Edit either box. The formula is fl oz = mL divided by 29.5735, and mL = fl oz times 29.5735.
8.4535 fl ozWhat this means
Common containers in US fluid ounces
US fl oz Each bar shows the US fluid ounce equivalent of a common metric container, from a 5 mL teaspoon to a 1 liter bottle. Every height is the mL volume divided by 29.5735.
Volume milestones
Common mL to fl oz values
| Milliliters | US fl oz | fl oz (rounded) | Where you see it |
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How the conversion works
Conversion Factor
1 milliliter equals 0.0338 US fluid ounces. 1 US fl oz = 29.5735 mL. The US fluid ounce is different from the UK Imperial fluid ounce (28.41 mL). This calculator uses US.
Cooking and Beverages
European recipes use mL; US recipes use fluid ounces. Cocktail recipes often use both. Beverages from European sources show mL; US labels show fl oz. International product comparison requires this conversion.
Reference Values
5 mL = 0.169 fl oz (1 teaspoon). 15 mL = 0.507 fl oz (1 tablespoon). 250 mL = 8.45 fl oz (about 1 cup). 500 mL = 16.91 fl oz (1 US pint = 16 oz).
Common questions
How many oz is 250 mL?
250 mL equals 8.45 US fl oz, a bit more than a US cup (8 oz).
Is US fl oz different from UK?
Yes, US = 29.57 mL, UK = 28.41 mL. Most non-cooking contexts use US. This calculator uses US.
How many mL in a teaspoon?
1 US teaspoon = 4.93 mL ≈ 5 mL. 1 tablespoon = 14.79 mL ≈ 15 mL.
All conversion runs in your browser. Nothing is uploaded. 1 US fluid ounce is exactly 29.5735295625 mL by definition, so these results are precise, not approximate. This page uses the US fluid ounce, not the UK Imperial one.