Convert Milliliters (mL) to Ounces (fl oz)

1 milliliter equals 0.033814 ounces.

Formula: fl oz = mL × 0.033814

Milliliter to Ounce Converter

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What Is a Milliliter?

The milliliter (mL) is a metric unit of volume equal to one thousandth of a liter (0.001 L) or 1 cubic centimeter (cm³). It is the global standard for labeling beverages, medicines, and cosmetic products. Most countries outside the US use milliliters as the primary unit for liquid product volumes.

What Is a Fluid Ounce?

The US fluid ounce (fl oz) is a customary unit of volume equal to 1/128 gallon, 2 tablespoons, or approximately 29.5735 milliliters. It is the standard measure for beverages, recipes, and nutrition labels in the United States. Note: the UK imperial fluid ounce is slightly smaller (28.413 mL).

Milliliters to Fluid Ounces Formula

The conversion factor is:

US fluid ounces = milliliters ÷ 29.5735

Or equivalently: fl oz = milliliters × 0.033814. Derived from: 1 US fl oz = 29.5735 mL.

Worked Example

Convert 355 mL (a standard US soda can) to fluid ounces:

  1. Divide: 355 ÷ 29.5735 = 12.0 fl oz

A 355 mL can is exactly 12 fluid ounces — the standard US soda can size.

Quick Estimation

30 mL ≈ 1 fl oz is the standard beauty and medicine shortcut (overshoots by 1.4%). Divide mL by 30 for a quick estimate. Example: 240 mL ÷ 30 = 8 fl oz (1 cup). For precision, divide by 29.57.

Common Milliliters to Fluid Ounces Conversions

MillilitersUS Fl OzContext
5 mL0.169 fl oz1 teaspoon
15 mL0.507 fl oz1 tablespoon
30 mL1.014 fl ozShot glass / skincare standard
50 mL1.691 fl ozTravel-size toiletry (TSA limit: 3.4 fl oz = 100 mL)
100 mL3.381 fl ozTSA carry-on liquid limit
237 mL8.012 fl oz1 US cup
330 mL11.16 fl ozEuropean soda can
355 mL12.00 fl ozUS soda can
500 mL16.91 fl ozStandard water bottle
750 mL25.36 fl ozWine bottle
1000 mL33.81 fl oz1 liter

When You Need This Conversion

  • Beverages: Imported drinks are labeled in mL. A 330 mL European can = 11.2 fl oz (slightly less than a US 12 oz can). A 500 mL bottle = about 16.9 fl oz.
  • Cosmetics and skincare: Products are labeled in mL worldwide. A 30 mL serum = about 1 fl oz. The TSA carry-on limit is 100 mL (3.4 fl oz) per container.
  • Medicine: Prescription and OTC medications are measured in mL. A 120 mL cough syrup bottle = about 4 fl oz.

Frequently Asked Questions

How many mL in a fluid ounce?

1 US fl oz = 29.5735 mL. The common shortcut is 30 mL ≈ 1 fl oz, which is accurate to within 1.4%.

How many fluid ounces is 100 mL?

100 mL = 3.381 fl oz. This is the TSA maximum container size for carry-on liquids (labeled as "3.4 fl oz" or "100 mL").

How many mL is a standard water bottle?

The most common size is 500 mL (16.9 fl oz). Other common sizes: 330 mL (11.2 fl oz), 750 mL (25.4 fl oz), and 1,000 mL (33.8 fl oz / about 1 quart).

Is a US fluid ounce the same as a UK fluid ounce?

No. A US fl oz = 29.5735 mL. A UK (imperial) fl oz = 28.4131 mL — about 4% smaller. This converter uses US fluid ounces.

How many mL in a shot glass?

A standard US shot = 44.36 mL (1.5 fl oz). A single (bar) shot is sometimes 30 mL (1 fl oz). There is no legal standard in the US.

Common Milliliter to Ounce Conversions

Milliliter to Ounce (Part 1)
Milliliter Ounce Actions
1 milliliter 0.033814 ounces
5 milliliters 0.16907 ounces
10 milliliters 0.33814 ounces
25 milliliters 0.845351 ounces
Milliliter to Ounce (Part 2)
Milliliter Ounce Actions
50 milliliters 1.6907 ounces
100 milliliters 3.3814 ounces
500 milliliters 16.907 ounces
1000 milliliters 33.814 ounces

Milliliters to ounces Conversion Table

Reference table with common milliliters to ounces conversions. All values calculated with high precision.

Milliliters to Ounces Table
0.01 to 50

Milliliters Ounces Actions
0.01 mL 0.00033814 fl oz
0.025 mL 0.000845351 fl oz
0.05 mL 0.0016907 fl oz
0.1 mL 0.0033814 fl oz
14 mL 0.00845351 fl oz
12 mL 0.016907 fl oz
1 mL 0.033814 fl oz
12 mL 0.0845351 fl oz
5 mL 0.16907 fl oz
10 mL 0.33814 fl oz
25 mL 0.845351 fl oz
50 mL 1.6907 fl oz

Milliliters to Ounces Table
100 to 10000000

Milliliters Ounces Actions
100 mL 3.3814 fl oz
250 mL 8.45351 fl oz
500 mL 16.907 fl oz
1000 mL 33.814 fl oz
2500 mL 84.5351 fl oz
5000 mL 169.07 fl oz
10000 mL 338.14 fl oz
25000 mL 845.351 fl oz
50000 mL 1690.7 fl oz
100000 mL 3381.4 fl oz
250000 mL 8453.51 fl oz
500000 mL 16907 fl oz
1000000 mL 33814 fl oz
2500000 mL 84535.1 fl oz
5000000 mL 169070 fl oz
10000000 mL 338140 fl oz

Ounces to Milliliters Table
0.0001 to 12

Ounces Milliliters Actions
0.0001 fl oz 0.00295735 mL
0.00025 fl oz 0.00739338 mL
0.0005 fl oz 0.0147868 mL
0.001 fl oz 0.0295735 mL
0.0025 fl oz 0.0739338 mL
0.005 fl oz 0.147868 mL
0.01 fl oz 0.295735 mL
0.025 fl oz 0.739338 mL
0.05 fl oz 1.47868 mL
0.1 fl oz 2.95735 mL
14 fl oz 7.39338 mL
12 fl oz 14.7868 mL

Ounces to Milliliters Table
1 to 100000

Ounces Milliliters Actions
1 fl oz 29.5735 mL
12 fl oz 73.9338 mL
5 fl oz 147.868 mL
10 fl oz 295.735 mL
25 fl oz 739.338 mL
50 fl oz 1478.68 mL
100 fl oz 2957.35 mL
250 fl oz 7393.38 mL
500 fl oz 14786.8 mL
1000 fl oz 29573.5 mL
2500 fl oz 73933.8 mL
5000 fl oz 147868 mL
10000 fl oz 295735 mL
25000 fl oz 739338 mL
50000 fl oz 1478680 mL
100000 fl oz 2957350 mL

Looking for the reverse? Convert Ounce to Milliliter

Related in other categories:

  • Bar to PSIPressure × volume in gas law (PV = nRT)
  • Grams to OuncesFluid ounces (volume) vs ounces (weight) — related in cooking
Conversion factors verified against NIST, BIPM, ISO 80000-3 1 US gallon = 3.785411784 L (exact, US customary). Last reviewed: March 2026
Tiago Fernandes Reviewed by Tiago Fernandes

All unit conversions on CoolConversion use conversion factors defined or documented by internationally recognised standards bodies (such as ISO and NIST), including both SI and non-SI units.

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