ml to oz quick answer
For US recipes and nutrition labels, 1 US fluid ounce = 29.5735295625 mL. For Imperial measurements, 1 Imperial fluid ounce = 28.4130625 mL.
If you are starting with fluid ounces instead, use the oz to mL converter. If you need to calculate container capacity from dimensions, use the volume calculator.
How to convert ml to oz
- Choose the ounce system: US fluid ounces or Imperial fluid ounces.
- Divide the milliliters by the matching conversion factor.
- Keep the result as fluid ounces, or use the secondary results for cups and tablespoons.
For example, 250 mL in US fluid ounces is:
250 / 29.5735295625 = 8.4535 US fl oz
Common ml to oz conversions
- 30 mL = 1.0144 US fl oz
- 100 mL = 3.3814 US fl oz
- 250 mL = 8.4535 US fl oz
- 500 mL = 16.907 US fl oz
US fluid ounces vs Imperial fluid ounces
Most US search results, bottle labels, and nutrition facts use US fluid ounces. UK and Commonwealth recipes may use Imperial fluid ounces. The difference is small for casual cooking but large enough to matter in medicine, cocktails, and scaled recipes.