Fluid Ounces to Milliliters Converter

1 fl oz = 29.57353 mL  ·  1 mL = 0.033814 fl oz

Convert Fluid Ounces to Milliliters Instantly

This free converter turns Fluid Ounces (fl oz) into Milliliters (mL) the moment you type. The relationship is fixed: 1 fl oz = 29.57353 mL, so every value uses the same exact ratio. Enter a number above to see the result, read across the reference table for common values, or hit the swap button to convert mL back to fl oz.

The fl oz to mL Formula

Multiply the number of Fluid Ounces by the conversion factor:

mL = fl oz × 29.57353

To reverse the calculation, divide by the same factor (or multiply by its inverse):

fl oz = mL × 0.033814

Worked Examples

Here are some common Fluid Ounces-to-Milliliters conversions worked out using the formula above:

• 1 fl oz = 29.57353 mL
• 2 fl oz = 59.147059 mL
• 5 fl oz = 147.867648 mL
• 10 fl oz = 295.735296 mL
• 25 fl oz = 739.33824 mL
• 100 fl oz = 2957.35296 mL

Understanding Fluid Ounces and Milliliters

Fluid Ounces (fl oz) and Milliliters (mL) are units of volume or capacity. Liters and milliliters are metric and used almost everywhere, while US gallons, cups, and fluid ounces are customary units common in the United States. Note that US and imperial gallons differ — this converter uses the US definition.

Where This Conversion Is Used

• Cooking and baking — scaling recipes between metric and US measurements
• Automotive and fuel — comparing fuel volumes and engine capacities
• Beverages and bartending — measuring drinks and mixing ratios
• Gardening and chemicals — diluting solutions to the correct concentration
• Science labs — measuring reagents and liquid samples

Quick Conversion Tips

• For a fast estimate, round the factor to one or two decimals and adjust mentally.
• Keep the full factor (29.57353) for anything where precision matters, such as engineering or finance.
• Use the swap button above to convert in the opposite direction without re-typing.

Frequently Asked Questions

How many Milliliters are in 1 Fluid Ounces?

One Fluid Ounces (fl oz) equals exactly 29.57353 Milliliters (mL). Multiply any value in fl oz by 29.57353 to convert it.

How do I convert Milliliters back to Fluid Ounces?

Divide the value in mL by 29.57353, or multiply it by 0.033814. For example, 10 mL = 0.033814 × 10 = 0.33814 fl oz.

Is the fl oz to mL conversion exact?

Yes. The factor 29.57353 is defined by international standards, so the converter is accurate to the limits of floating-point arithmetic. Results may be rounded for display, but the underlying calculation uses the full-precision value.

Can I use this converter on my phone?

Yes — the calculator works in any browser on desktop, tablet, and mobile, with no app or sign-up required.