Convert Milliliters to Fluid ounces
Instantly convert milliliters (mL) to US fluid ounces (fl oz) using 1 fl oz = 29.5735 mL — dial in recipes, drink volumes, and imported-product labels with the exact factor.
- Milliliter (mL)1
- Liter (L)0.001
- Cubic Meter (m³)0.000001
- Gallon (US gal)0.000264
- Cup (US cup)0.004227
- Fluid Ounce (fl oz)0.033814
- Hop (홉)0.005556
- Doe (되)0.000556
- Mal (말)0.000056
🔒 Unit conversions are computed in your browser.
The formula: divide milliliters by 29.5735
To convert to US fluid ounces, divide the milliliter value by 29.5735 (fl oz = mL ÷ 29.5735), or multiply by 0.033814 if you prefer — both give the same answer. For example, 500 mL is 500 ÷ 29.5735 ≈ 16.91 fl oz, and a 250 mL cup is about 8.45 fl oz. The familiar 355 mL soda can works out to 355 ÷ 29.5735 = 12.004, which is simply the metric label for a 12 fl oz can. Because both units measure volume, this is a clean proportional scaling with no offset — 0 mL always maps to 0 fl oz.
Where you'll use it: recipes, cans, and dosing cups
This conversion shines when you bring US recipes into a metric kitchen. A recipe calling for 8 fl oz of milk needs about 237 mL, and a '16 oz' coffee tumbler holds roughly 473 mL. Going the other way, a 500 mL water bottle is about 16.9 fl oz, and a 30 mL medicine cup is about 1.01 fl oz — close to a US '1 shot.' It's equally handy for checking cosmetics and medication volumes, verifying labels on imported products, and scaling bartending or cocktail recipes.
Watch out: US vs UK ounces, weight vs volume, rounding
The most common mistake is mixing up ounce types. This page uses the US fluid ounce (1 fl oz = 29.5735 mL); the UK/Imperial fluid ounce is 28.4131 mL, about 4% smaller, so the same mL yields a fl oz value roughly 4% higher. Also, a fluid ounce measures volume while a weight ounce (oz, 28.35 g) measures mass — they aren't interchangeable. And US Nutrition Facts labels round 1 fl oz to exactly 30 mL, so an '8 fl oz' serving prints as 240 mL rather than the true 236.6 mL. For large volumes, use 29.5735 instead of the short 0.0338 factor to keep rounding error small.
Frequently asked questions
How many fl oz is 1 mL?
1 mL equals 0.033814 US fl oz, and conversely 1 fl oz equals 29.5735 mL. For quick mental math, multiply mL by 0.0338, or divide by 30 for a rough figure and nudge it up slightly. For example, 100 mL ≈ 3.38 fl oz.
Is this the US or UK fluid ounce?
This converter uses the US fluid ounce (1 fl oz = 29.5735 mL). The Imperial fluid ounce used in the UK, Australia, and elsewhere is 28.4131 mL — slightly smaller — so the same milliliter amount yields a fl oz value about 4% higher. If you're following a British recipe, convert separately.
Why is 8 fl oz sometimes 237 mL and sometimes 240 mL?
Using the customary US fluid ounce, 8 × 29.5735 = 236.6 mL. But US FDA nutrition-labeling rules treat 1 fl oz as exactly 30 mL, so they print 8 fl oz as 240 mL. Think of 236.6 mL as the precise cooking measure and 240 mL as the rounded serving size on a label.