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Fluid Ounces to Milliliters

Converts a volume measured in US fluid ounces into milliliters using the standard conversion factor.

MathematicsUnit ConversionDaily Life

Fluid Volume ConverterFluid Ounces ↔ Milliliters

mL = fl oz × 29.5735
mL = milliliters  ·  fl oz = fluid ounces (US)  ·  Conversion factor
⟹ Solvefl oz, mL
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mL
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mL = fl oz × 29.5735  ·  fl oz = mL / 29.5735  ·  US fluid ounce definition

Interpretation

mL = fl_oz × 29.5735. Converts US fluid ounces to milliliters. Used in cooking, medicine, and beverages.

mL = fl_oz * 29.5735
Fluid Ounces to Milliliters

Variables

SymbolQuantityUnit
mLVolume in milliliters
fl_ozVolume in US fluid ounces

What it means

The US fluid ounce is a unit of volume commonly used in the US for liquids. The conversion to millilitres is 1 US fl oz = 29.5735 mL. This is used in recipes, in pharmaceutical dosing (oral liquids), and in beverage packaging. Accurate conversion is important for following recipes and for proper medication administration.

Worked example

Fluid oz to mL – Two Examples

Real‑World
Scenario: A medicine bottle says 4 fl oz. Convert to mL.
ParameterValue
fl oz4
1mL = 4 × 29.5735 = 118.294 mL
Result 118.29 mL ✓ Medicine
Scenario: A recipe needs 8 fl oz of milk. Convert to mL.
ParameterValue
fl oz8
1mL = 8 × 29.5735 = 236.588 mL
Result 236.59 mL ✓ Milk
Insight: 1 fl oz = 29.5735 mL. Different from avoirdupois ounce (weight).

Common mistakes

  • Conversion factor: 1 fluid ounce (US) = 29.5735 mL – multiply fl oz by this factor.
  • Direction: This converts US fl oz to mL.
  • Imperial fl oz: Different (28.413 mL) – do not mix.
  • Precision: Use appropriate decimal places.
  • Applications: Used in cooking, pharmacy, and chemistry.

Applications

Fluid ounces to millilitres conversion, mL = fl_oz × 29.5735, is used in cooking, pharmacy, and the beverage industry. Millilitres are the standard for many countries, while fluid ounces are used in the US. This conversion is essential for accurate recipe scaling, medication dosing, and product labelling. Engineers may use it in small‑scale fluid handling. By converting accurately, professionals ensure correct volumes in consumer products and medical preparations, enhancing safety and quality.

  • Cooking and recipe conversion between metric and imperial
  • Pharmaceutical liquid medication dosing
  • Beverage and liquid product packaging
  • Laboratory measurements and reagent preparation
  • International food and beverage trade

Frequently Asked Questions

Q01What is the formula for converting US fluid ounces to milliliters?
A01

The conversion is mL = fl oz × 29.5735. This is for US fluid ounces.

Q02What is the common mistake when using this formula?
A02

Confusing US fluid ounces with UK imperial fluid ounces, which are about 28.413 mL.

Q03What is the exact conversion factor?
A03

1 US fl oz = 29.5735295625 mL.

Q04How do you convert 8 fl oz to mL?
A04

8 × 29.5735 = 236.588 mL.

Q05What is the inverse conversion from mL to fl oz?
A05

fl oz = mL / 29.5735.

Q06What are the applications of this conversion?
A06

Cooking, medicine dosing, and beverage serving sizes.