Convert oz to ml — Free Fluid ounces to Milliliters Calculator
Convert fluid ounces to milliliters instantly. Enter any value and get the exact conversion with the formula displayed. Accurate to 4 decimal places.
Last updated: January 2026
Fluid ounces to Milliliters Converter
The fluid ounces to milliliters conversion formula
To convert fluid ounces to milliliters, multiply by 29.5735. The formula is:
For example: 4 oz = 118.294 ml. This formula works for any value you enter in the calculator above.
Common oz to ml conversions
| Fluid ounces (oz) | Milliliters (ml) |
|---|---|
| 1 | 29.5735 |
| 2 | 59.147 |
| 4 | 118.294 |
| 6 | 177.441 |
| 8 | 236.588 |
| 12 | 354.882 |
| 16 | 473.176 |
| 24 | 709.764 |
| 32 | 946.352 |
| 64 | 1892.704 |
Use the converter above to calculate any custom value. The result updates instantly as you type.
Why both fluid ounces and milliliters are used
Volume measurements vary significantly between the metric and imperial systems. Liters and milliliters are used in most countries for beverages, fuel, and cooking. Fluid ounces, gallons, and other imperial units are standard in the US. This creates confusion when following international recipes, comparing product labels, or working with scientific measurements from different sources. An accurate converter eliminates guesswork when converting between systems.
How to use this converter
Simply type a value in either field — the converter instantly calculates the equivalent in the other unit. The conversion formula is shown below the inputs so you can see exactly how the result was calculated. Use the conversion table for quick reference of common values.
Need more conversions? Try the full unit converter which supports multiple categories of units all in one page.
Frequently asked questions about oz to ml conversion
How do I convert fluid ounces to milliliters?
To convert fluid ounces to milliliters, multiply by 29.5735. For example, 1 oz × 29.5735 = 29.5735 ml.
What is the formula to convert fluid ounces to milliliters?
The formula to convert fluid ounces to milliliters is: milliliters = fluid ounces × 29.5735. Simply multiply the number of fluid ounces by 29.5735 to get the equivalent in milliliters.
What is the difference between fluid ounces and milliliters?
Fluid ounces and milliliters are units of volume capacity. They belong to different measurement systems: the imperial system. The conversion factor depends on which specific units you are converting between.
Common oz to ml conversions
Common conversions include: 1 oz = 29.57 ml, 2 oz = 59.15 ml, 4 oz = 118.29 ml, 6 oz = 177.44 ml, 8 oz = 236.59 ml, 12 oz = 354.88 ml, 16 oz = 473.18 ml, 24 oz = 709.76 ml. Use the calculator above for any value.