Milliliters to Fluid Ounces Converter
Convert milliliters (mL) to US fluid ounces (fl oz). One milliliter equals 0.033814 US fluid ounces, so multiply a value in milliliters by 0.033814 to get US fluid ounces.
Formula: multiply the source value by 0.03381402
Quick Conversions
About this tool
A milliliter is one thousandth of a liter, the same volume as one cubic centimeter. A US fluid ounce is 1/128 of a US gallon, exactly 29.5735295625 milliliters. Because 1 milliliter is 0.001 liters and 1 US fluid ounce is 0.0295735296 liters, the factor is their ratio, 0.033814022702.
How to use it
- Type a value in milliliters in the first field. The unit menus start on mL → fl oz.
- Read the result in US fluid ounces. It updates as you type; use Precision to choose how many decimals are shown.
- Press the swap button, or open the Fluid Ounces to Milliliters converter, to convert US fluid ounces back to milliliters.
fl oz = mL × 0.033814022702
mL = fl oz ÷ 0.033814022702
Examples
30 mL to fl oz
30 mL × 0.033814 = 1.01442 fl oz.
250 mL to fl oz
250 mL × 0.033814 = 8.45351 fl oz.
500 mL to fl oz (a half-liter bottle)
500 mL × 0.033814 = 16.907 fl oz.
Milliliters to US fluid ounces conversion table
| Milliliters (mL) | US fluid ounces (fl oz) |
|---|---|
| 1 | 0.033814 |
| 2 | 0.067628 |
| 3 | 0.101442 |
| 4 | 0.135256 |
| 5 | 0.16907 |
| 10 | 0.33814 |
| 15 | 0.50721 |
| 20 | 0.67628 |
| 25 | 0.845351 |
| 50 | 1.6907 |
| 100 | 3.3814 |
| 250 | 8.45351 |
| 500 | 16.907 |
| 1,000 | 33.814 |
US fluid ounces to milliliters (reverse)
| US fluid ounces (fl oz) | Milliliters (mL) |
|---|---|
| 1 | 29.5735 |
| 5 | 147.868 |
| 10 | 295.735 |
| 50 | 1,478.68 |
| 100 | 2,957.35 |
FAQ
How many US fluid ounces are in one milliliter?
One milliliter is 0.033814 US fluid ounces. The unrounded factor is 0.033814022702.
How do I convert US fluid ounces back to milliliters?
Divide by 0.033814, or multiply by 29.5735. For example, 10 fl oz is 295.735 mL.
Is this the US or the UK fluid ounce?
The US customary fluid ounce, 29.5735295625 mL. The UK imperial fluid ounce is slightly smaller, 28.4130625 mL.
Is the conversion exact?
Yes, before rounding. The US gallon is defined as exactly 231 cubic inches (3.785411784 L), and the quart, pint, cup, and fluid ounce are exact fractions of it.

