Fluid Ounces to Milliliters Converter
Use this tool to convert ounces (oz) to milliliters (ml). Choose US or Imperial fluid ounces for accurate results.
What does oz to ml mean?
“Oz to ml” means converting fluid ounces into milliliters. This is common when reading recipes, nutrition labels, medicine instructions, and drink measurements.
Since ounces are used more often in the United States and milliliters are used in most metric countries, a quick converter helps avoid mistakes in cooking and portioning.
oz to ml conversion formula
US fluid ounces to milliliters
ml = oz × 29.5735296
Imperial fluid ounces to milliliters
ml = oz × 28.4130625
Quick oz to ml conversion chart (US fluid ounces)
| Ounces (oz) | Milliliters (ml) |
|---|---|
| 1 oz | 29.57 ml |
| 2 oz | 59.15 ml |
| 4 oz | 118.29 ml |
| 8 oz | 236.59 ml |
| 12 oz | 354.88 ml |
| 16 oz | 473.18 ml |
| 24 oz | 709.76 ml |
| 32 oz | 946.35 ml |
When to use an oz to ml calculator
- Converting recipe ingredients from US sites
- Measuring baby formula or liquid medication
- Tracking hydration in ml instead of ounces
- Comparing bottle sizes while shopping online
- Scaling beverage recipes for parties
Common mistakes to avoid
- Using weight ounces instead of fluid ounces: oz can refer to weight or volume.
- Mixing US and Imperial values: they are close but not the same.
- Rounding too early: for precise cooking or science, keep extra decimals until final step.
FAQ
How many ml are in 1 oz?
1 US fluid ounce equals 29.5735 ml. 1 Imperial fluid ounce equals 28.4131 ml.
Is 8 oz equal to 250 ml?
Not exactly. 8 US oz is about 236.59 ml. In many kitchens, people round this to 240 ml.
How many oz are in 500 ml?
500 ml is about 16.91 US oz (or about 17.60 Imperial oz).
Final thoughts
A reliable oz to ml calculator saves time and prevents measurement errors. Whether you are cooking, mixing drinks, or reading product labels, choosing the correct ounce system makes your conversion accurate and stress-free.