Convert Milliliters to US Fluid Ounces
No popups. No autoplay ads. Accurate answers with formulas shown.
Measurement
About Milliliters to US Fluid Ounces Conversions
Medicine Dosing: Where Precision Matters
One milliliter equals 0.033814 US fluid ounces. Put another way, 1 US fluid ounce is 29.5735 mL.
The most critical use of this conversion is medicine dosing. Liquid medications for children are prescribed in milliliters (2.5 mL, 5 mL, 10 mL), but some American measuring devices still show fluid ounces. The American Academy of Pediatrics recommends dosing exclusively in milliliters to prevent errors. A teaspoon is roughly 5 mL, but "roughly" is not good enough for medication.
| Milliliters | US Fluid Ounces | Common reference |
|---|---|---|
| 5 | 0.169 | One teaspoon / standard med dose |
| 15 | 0.507 | One tablespoon |
| 30 | 1.014 | One fluid ounce (standard shot) |
| 50 | 1.691 | Mini liquor bottle |
| 100 | 3.381 | TSA liquid limit per container |
| 236.6 | 8.0 | One US cup |
| 250 | 8.45 | Common metric cup (AU/NZ) |
| 355 | 12.0 | Standard US soda can |
| 500 | 16.9 | Standard water bottle |
| 750 | 25.4 | Standard wine bottle |
Baby Bottles and Infant Feeding
New parents search this conversion constantly. Baby bottles sold in the US are marked in ounces (2 oz, 4 oz, 8 oz). Pediatricians in metric countries prescribe feeding amounts in milliliters. A newborn might take 60-90 mL (2-3 oz) per feeding, increasing to 120-180 mL (4-6 oz) by a few months. Formula preparation instructions from European brands list water amounts in milliliters, while the bottle you are holding shows ounces.
Beverages and Serving Sizes
US nutrition labels show fluid ounces. Imported drinks show milliliters. A 330 mL European soda can is 11.2 fl oz (slightly smaller than the US standard 12 fl oz / 355 mL can). A 500 mL European beer is 16.9 fl oz. A "pint" of beer in the US is 16 fl oz (473 mL), while a British pint is 20 imperial fl oz (568 mL).
The 30 mL Rule
For mental math, remember that 1 fl oz is about 30 mL. This is accurate to within 1.4%. So 8 fl oz is about 240 mL, 12 fl oz is about 360 mL, and 16 fl oz is about 480 mL. These approximations are close enough for cooking, mixing drinks, and understanding package sizes. For medication, use exact values.
Quick Conversions
| Unit Name | Symbol | Per 1 Milliliter |
|---|---|---|
| Cubic Centimeter | cmยณ | 1 |
| Cubic Foot | ftยณ | 0.0000353147 |
| Cubic Inch | inยณ | 0.0610237 |
| Cubic Meter | mยณ | 0.000001 |
| Imperial Fluid Ounce | imp fl oz | 0.0351951 |
| Imperial Gallon | imp gal | 0.000219969 |
| Imperial Pint | imp pt | 0.00175975 |
| Liter | L | 0.001 |
| Milliliter | mL | 1 |
| US Cup | US cup | 0.00422675 |
| US Fluid Ounce | US fl oz | 0.033814 |
| US Gallon | US gal | 0.000264172 |
| US Pint | US pt | 0.00211338 |
| US Quart | US qt | 0.00105669 |
| US Tablespoon | US tbsp | 0.067628 |
| US Teaspoon | US tsp | 0.202884 |
Frequently Asked Questions
Why is a US fluid ounce not the same as a UK fluid ounce?
A US fluid ounce is 29.5735 ml, while a UK imperial fluid ounce is 28.4131 ml, about 4% smaller. So a 16 fl oz US pint (473 ml) is noticeably less than a 20 fl oz UK pint (568 ml). Both ounces evolved from the medieval wine and ale measures that diverged after 1824. American spirits are sold in fl oz and metric ml side by side; cocktail recipes from London assume the imperial measure unless they specify US. When in doubt, the ml number on the bottle is the source of truth.
How do I convert Milliliters to US Fluid Ounces?
To convert Milliliters to US Fluid Ounces, use the conversion where 1 Milliliter (mL) = 0.033814 US Fluid Ounces (US fl oz). For example, 1 Milliliter = 0.033814 US Fluid Ounces.
What are common Milliliter to US Fluid Ounce conversions?
Here are common conversions: 1 Milliliters = 0.033814 US Fluid Ounces, 5 Milliliters = 0.16907 US Fluid Ounces, 10 Milliliters = 0.33814 US Fluid Ounces, 25 Milliliters = 0.845351 US Fluid Ounces, 50 Milliliters = 1.6907 US Fluid Ounces, 100 Milliliters = 3.3814 US Fluid Ounces.
When would I need to convert Milliliters to US Fluid Ounces?
Comparing cosmetic and personal care product sizes across regions. Converting drink portion sizes from metric menus. Pharmaceutical dosing when instructions use different volume units.
How precise are the conversions?
All conversions use exact factors verified against NIST and ISO standards with up to 10 significant figures of precision. Results are calculated using IEEE 754 double-precision arithmetic, which provides approximately 15-17 significant digits. For temperature and other non-linear conversions, exact formulas are used rather than approximations.
How many US Fluid Ounces is 355 Milliliters? (Standard US soda can)
355 Milliliters equals 12.005 fl oz US Fluid Ounces. This is a frequently referenced value because it represents standard us soda can.