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Convert Milliliters to Fluid Ounces

Instantly convert Milliliters (mL) to Fluid Ounces (fl oz) with our free online calculator.

Reviewed by Christopher FloiedUpdated

Formula: mL to fl ozmultiply by 0.0338141

Reference Table

Milliliters (mL)Fluid Ounces (fl oz)
10.0338141
50.16907
100.338141
250.845351
501.6907
1003.38141

How to Convert Milliliters to Fluid Ounces

Formula

To convert Milliliters (mL) to Fluid Ounces (fl oz): multiply by 0.0338141

Step-by-Step

  1. Start with your value in Milliliters (mL).
  2. Multiply by 0.0338141 to perform the conversion.
  3. The result is your value expressed in Fluid Ounces (fl oz).

Conversion Factor

1 mL = 0.0338141 fl oz

Reverse Factor

1 fl oz = 29.5735 mL

Worked Example

Convert 25 Milliliters to Fluid Ounces: 25 mL = 0.845351 fl oz

About Milliliter (mL)

A metric unit of volume equal to exactly one thousandth of a litre (0.001 L) and exactly one cubic centimeter (1 mL ≡ 1 cm³ per BIPM). The mL is the universal small-volume unit in clinical medicine and pharmacy (USP / EP / JP / BP / IP pharmacopoeial dosing per ISO 13485 medical-device standards), laboratory chemistry (titration burettes, analytical glassware per ASTM E542), small-batch cooking outside the US, perfume and personal-care products (EU Cosmetic Regulation requires labelling in mL), and beverage packaging (a 500 mL water bottle, 750 mL wine, 700 mL standard spirits bottle in most of the world / 750 mL in US). Reference values: a typical Luer-lock medical syringe 1-60 mL, US shot glass ~44 mL (1.5 fl oz), standard saline IV bag 250-1,000 mL, espresso shot ~30 mL, retail vape juice 30/60/120 mL. In medical and laboratory contexts, mL and cc (cubic centimeters) are used interchangeably — both equal one cm³.

About Fluid Ounce (fl oz)

A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29.5735 mL). Fluid ounces are the universal US small-liquid-volume retail unit: beverage containers (a standard US Coke can is 12 fl oz, a Starbucks Grande is 16 fl oz, Trenta 30 fl oz), shampoo / lotion / personal-care bottles, US cocktail and bartending recipes (1.5 fl oz is the standard 'jigger' shot), wine pours (a standard restaurant pour is 5 fl oz; a generous home pour 6 fl oz), and home-cooking liquid measurements. **Important**: the US fluid ounce (29.5735 mL) is NOT the same as the UK Imperial fluid ounce (28.4131 mL) — the ~4% difference is usually inconsequential at consumer level but matters when scaling industrial formulations. The US fluid ounce is also distinct from the avoirdupois ounce (a weight unit ≈ 28.35 g), although for plain water the numerical values happen to coincide closely (1 US fl oz of water ≈ 1.04 oz mass).

Quick Facts

  • 1 Milliliter equals 0.0338141 Fluid Ounces
  • 1 Fluid Ounce equals 29.5735 Milliliters
  • Milliliter is a unit of volume
  • Fluid Ounce is a unit of volume
  • This conversion is commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement
  • The Milliliter belongs to the metric system
  • The Fluid Ounce belongs to the imperial system

Common Milliliter to Fluid Ounce Conversions

Milliliters (mL)Fluid Ounces (fl oz)
0.010.000338141
0.10.00338141
0.250.00845351
0.50.016907
10.0338141
20.0676281
30.101442
50.16907
100.338141
150.507211
200.676281
250.845351
501.6907
752.53605
1003.38141
2508.45351
50016.907
100033.8141
5000169.07
10000338.141

Understanding Milliliters

The Milliliter (symbol: mL) is a unit of volume. A metric unit of volume equal to exactly one thousandth of a litre (0.001 L) and exactly one cubic centimeter (1 mL ≡ 1 cm³ per BIPM). The mL is the universal small-volume unit in clinical medicine and pharmacy (USP / EP / JP / BP / IP pharmacopoeial dosing per ISO 13485 medical-device standards), laboratory chemistry (titration burettes, analytical glassware per ASTM E542), small-batch cooking outside the US, perfume and personal-care products (EU Cosmetic Regulation requires labelling in mL), and beverage packaging (a 500 mL water bottle, 750 mL wine, 700 mL standard spirits bottle in most of the world / 750 mL in US). Reference values: a typical Luer-lock medical syringe 1-60 mL, US shot glass ~44 mL (1.5 fl oz), standard saline IV bag 250-1,000 mL, espresso shot ~30 mL, retail vape juice 30/60/120 mL. In medical and laboratory contexts, mL and cc (cubic centimeters) are used interchangeably — both equal one cm³.

It belongs to the metric measurement system.

Milliliters are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.

Understanding Fluid Ounces

The Fluid Ounce (symbol: fl oz) is a unit of volume. A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29.5735 mL). Fluid ounces are the universal US small-liquid-volume retail unit: beverage containers (a standard US Coke can is 12 fl oz, a Starbucks Grande is 16 fl oz, Trenta 30 fl oz), shampoo / lotion / personal-care bottles, US cocktail and bartending recipes (1.5 fl oz is the standard 'jigger' shot), wine pours (a standard restaurant pour is 5 fl oz; a generous home pour 6 fl oz), and home-cooking liquid measurements. **Important**: the US fluid ounce (29.5735 mL) is NOT the same as the UK Imperial fluid ounce (28.4131 mL) — the ~4% difference is usually inconsequential at consumer level but matters when scaling industrial formulations. The US fluid ounce is also distinct from the avoirdupois ounce (a weight unit ≈ 28.35 g), although for plain water the numerical values happen to coincide closely (1 US fl oz of water ≈ 1.04 oz mass).

It belongs to the imperial measurement system.

Fluid Ounces are commonly used in cooking, chemistry, fluid mechanics, and everyday liquid measurement.

Why Convert Milliliters to Fluid Ounces?

Volume conversions between Milliliters and Fluid Ounces are essential in cooking, chemistry, and fluid mechanics. Recipes from different countries use different measurement systems, laboratory procedures reference varying units, and engineers designing fluid systems need precise volume calculations for pipes, tanks, and pumps.

Frequently Asked Questions

How do I convert Milliliters to Fluid Ounces?

A metric unit of volume equal to exactly one thousandth of a litre (0. To convert Milliliters to Fluid Ounces, multiply by 0.0338141. For example, 25 mL equals 0.845351 fl oz.

How many Fluid Ounces are in 1 Milliliter?

There are 0.0338141 Fluid Ounces in 1 Milliliter.

How many Milliliters are in 1 Fluid Ounce?

There are 29.5735 Milliliters in 1 Fluid Ounce.

What is the formula for Milliliter to Fluid Ounce conversion?

The formula is: multiply by 0.0338141. This means 1 mL = 0.0338141 fl oz.

Is a Milliliter bigger than a Fluid Ounce?

Yes. One Milliliter is larger than one Fluid Ounce because 1 mL equals 0.0338141 fl oz, which is less than 1.

When do you need to convert between Milliliters and Fluid Ounces?

A US customary unit of liquid volume equal to exactly 1/128 of a US gallon (≈ 29. Milliliter and Fluid Ounce are both volume units, so conversion comes up whenever one source of information uses one unit and another uses the other — a classic cross-reference challenge in engineering, trade, travel, and everyday life.

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