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Volume

Convert fluid ounces to milliliters

1 fl oz=29.5735ml

Use the converter below to change any fluid ounces value into milliliters instantly — with formula, conversion table, and real-world examples.

29.57353

Conversion formula

Forward
milliliters = fluid ounces × 29.5735
Reverse
fluid ounces = milliliters × 0.03381

Example: 10 fl oz × 29.5735 = 295.735 ml.

About both units

From

Fluid Ounce

fl oz

The US fluid ounce equals 29.5735 millilitres — 1/128 of a US gallon. The UK fluid ounce (28.41 ml) is slightly smaller. Used for beverage can sizes in the US, cosmetic product sizes and many US cooking recipes. Do not confuse with the ounce of mass (28.35 g).

Real-world: A US soda can is 12 fl oz (355 ml). A Starbucks Tall is 12 fl oz; Grande is 16; Venti is 20.
Read full fluid ounce reference →
To

Milliliter

ml

The millilitre equals one thousandth of a litre, identical to one cubic centimetre (1 cc). Essential in medicine, cooking and science. A standard teaspoon holds about 5 ml; a tablespoon 15 ml. Medication syringes and baby-formula measures are in ml.

Real-world: A teaspoon holds about 5 ml. An espresso shot is 25–30 ml. An insulin pen delivers 0.1 ml increments.
Read full milliliter reference →

Fluid Ounce to Milliliter conversion table

Common fluid ounces to milliliters values for quick reference.

Fluid Ounce (fl oz)Milliliter (ml)
1 fl oz29.5735 ml
2 fl oz59.1471 ml
5 fl oz147.868 ml
10 fl oz295.735 ml
20 fl oz591.471 ml
50 fl oz1,478.68 ml
100 fl oz2,957.35 ml
200 fl oz5,914.71 ml
500 fl oz14,786.76 ml
1,000 fl oz29,573.53 ml

Tips & common mistakes

Quick tips

  • 1 US fl oz ≈ 29.6 ml; 1 UK fl oz ≈ 28.4 ml.
  • 8 US fl oz ≈ 1 US cup ≈ 237 ml.
  • Use ml to avoid ambiguity between US and UK fluid ounces.

Avoid these

  • Mixing US and UK fluid ounces — 16 fl oz (US) = 473 ml vs. 16 fl oz (UK) = 455 ml.
  • Confusing fluid ounce (volume) with avoirdupois ounce (mass).
  • Assuming 1 fl oz = 1 oz by weight — only true for pure water and approximately.

Frequently asked questions

How many milliliters in a fluid ounce?
One fluid ounce equals 29.5735 milliliters.
How do I convert fluid ounces to milliliters?
Multiply the fluid ounce value by 29.5735 to get the equivalent in milliliters.
What is 100 fluid ounces in milliliters?
100 fluid ounces equals 2,957.35 milliliters.
Is a fluid ounce bigger than a milliliter?
Yes. 1 fluid ounce equals 29.5735 milliliters, so one fluid ounce is larger.
How to convert fluid ounces to milliliters without a calculator?
Multiply by 29.57 for a quick estimate; use a calculator for precise results.

Related volume conversions

📊 See full comparison matrix →

More from Fluid Ounce

fl oz → L
1 = 0.02957 L
fl oz → m³
1 = 2.9574e-5 m³
fl oz → gal (US)
1 = 0.007813 gal (US)
fl oz → gal (UK)
1 = 0.006505 gal (UK)
fl oz → cup
1 = 0.1232 cup
fl oz → pt
1 = 0.0625 pt
fl oz → qt
1 = 0.03125 qt
fl oz → tbsp
1 = 1.99821 tbsp

More to Milliliter

L → ml
1 = 1,000 ml
m³ → ml
1 = 1,000,000 ml
gal (US) → ml
1 = 3,785.41 ml
gal (UK) → ml
1 = 4,546.09 ml
cup → ml
1 = 240 ml
pt → ml
1 = 473.176 ml
qt → ml
1 = 946.353 ml
tbsp → ml
1 = 14.8 ml

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WeightKilogram → PoundLengthKilometer → MileTemperatureCelsius → FahrenheitAreaSquare Meter → Square FootSpeedKilometer per Hour → Mile per HourEnergyKilojoule → KilocaloriePressureBar → Pound per Square InchPowerKilowatt → Mechanical Horsepower