ml to oz Converter
Convert milliliters to US fluid ounces instantly — 1 fl oz = 29.5735 ml
250 ml =
8.454 fl oz
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Quick summary
To convert milliliters to US fluid ounces, divide by 29.5735. So 250 ml ≈ 8.45 fl oz, 500 ml ≈ 16.91 fl oz, and 1000 ml (1 liter) ≈ 33.81 fl oz. To convert fluid ounces to ml, multiply by 29.5735. Use swap to reverse. Note these are US fluid ounces; UK (imperial) ounces differ slightly.
Reviewed by Simple Calculators TeamLast reviewed
How to use this calculator
- Enter the inputs requested by the calculator.
- Choose the units or options that match your situation and review the assumptions.
- Run or update the calculation to see the result.
- Review the result, breakdown, and formulas shown on the page.
- Check the inputs, units, dates, and limitations before saving or sharing the result.
Frequently asked questions
How do I convert ml to oz?
Divide the milliliters by 29.5735 to get US fluid ounces. For example, 500 ml ÷ 29.5735 = 16.91 fl oz. To convert fluid ounces to ml, multiply by 29.5735 instead.
How many oz is 250 ml?
250 ml is about 8.45 US fluid ounces — roughly a standard cup of liquid. The reference table covers common cooking and drink volumes.
Are these US or UK fluid ounces?
This converter uses US fluid ounces (1 fl oz = 29.5735 ml). The UK/imperial fluid ounce is slightly smaller at 28.4131 ml, so recipes and labels from different regions can vary.
How many ml in a fluid ounce?
One US fluid ounce is 29.5735 ml. So 8 fl oz (a cup) is about 237 ml, and 16 fl oz (a pint) is about 473 ml.
Key terms
- Milliliter (ml)
- A metric volume unit; 1000 ml = 1 liter.
- Fluid Ounce (fl oz)
- A US volume unit; 1 fl oz = 29.5735 ml.
- US vs Imperial
- US and UK fluid ounces differ slightly (29.57 vs 28.41 ml).
Methodology, sources & limitations
This page shows the formula, assumptions, and limitations used for this estimate. Rates, thresholds, and other time-sensitive inputs can change, so verify them against the relevant official source before relying on a result.
For our review approach and the primary sources we consult, see the methodology and source policy. If you spot an outdated figure or formula, please contact us with a correction.