Fluid ounces (US) to Milliliters Converter

1 fl oz equals 29.57353 mL, and 1 mL equals 0.033814023 fl oz. Enter a value in either box to convert fluid ounces (us) to milliliters and back. Formula: cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).

· CalcFlow Editorial

1 fl oz = 29.57353 mL

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

Fluid ounces (US) to Milliliters Conversion Table

Fluid ounces (US)Milliliters
1 fl oz29.57353 mL
2 fl oz59.147059 mL
5 fl oz147.86765 mL
10 fl oz295.7353 mL
20 fl oz591.47059 mL
50 fl oz1,478.6765 mL
100 fl oz2,957.353 mL
500 fl oz14,786.765 mL
1,000 fl oz29,573.53 mL

Milliliters to Fluid ounces (US) Conversion Table

MillilitersFluid ounces (US)
1 mL0.033814023 fl oz
2 mL0.067628045 fl oz
5 mL0.16907011 fl oz
10 mL0.33814023 fl oz
20 mL0.67628045 fl oz
50 mL1.6907011 fl oz
100 mL3.3814023 fl oz
500 mL16.907011 fl oz
1,000 mL33.814023 fl oz

Worked example: 10 fl oz = 295.7353 mL. 3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Need other units? Open the full Volume Converter.

Formula

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L)

Understanding Volume Conversion

Volume units come in two families that share names: US customary (gallon, quart, pint, cup, fluid ounce) and British imperial (the same names with different sizes). The US gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. The imperial gallon is exactly 4.54609 liters, about 20 percent larger. Cooking measures such as teaspoons and tablespoons are derived from the US gallon here.

Tips and Best Practices

  • 1A US gallon is about 3.785 liters; an imperial gallon is about 4.546 liters. Check which one a recipe or fuel figure means.
  • 2One US cup is about 236.6 mL, though nutrition labels round a cup to 240 mL.
  • 3For liquids in cooking, 3 teaspoons make 1 tablespoon and 16 tablespoons make 1 US cup.

Real-World Example

3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Common Mistakes to Avoid

  • Using US gallons for a UK recipe or car fuel figure, which can be off by about 20 percent.
  • Assuming a fluid ounce and an ounce of weight are the same; they measure different things.
  • Mixing the US pint (473 mL) with the imperial pint (568 mL).

How to Use

  1. Type a number in the Fluid ounces (US) box.
  2. The Milliliters result appears instantly; you can also edit the Milliliters box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many milliliters are in 1 fl oz?

1 fl oz equals 29.57353 mL.
Q

How many fluid ounces (us) are in 1 mL?

1 mL equals 0.033814023 fl oz.
Q

What is the formula to convert fluid ounces (us) to milliliters?

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).
Q

How many milliliters are in a cup?

A US customary cup is 236.5882365 mL. Many nutrition labels use a rounded 240 mL cup.

Sources: NIST Handbook 44 Appendix B (US gallon = 231 cubic inches; tablespoon, teaspoon, cup, pint, quart); UK Weights and Measures Act (imperial gallon = 4.54609 L); 42-gallon petroleum barrel.