mL to oz Calculator
Convert milliliters to US fluid ounces and vice versa. No density needed — pure volume-to-volume conversion.
Quick Answer
Converting milliliters (mL) to US fluid ounces (fl oz) is a simple volumetric conversion. One milliliter equals approximately 0.033814 US fluid ounces, and 1 US fluid ounce is exactly 29.5735 mL. No density calculation is required because both units directly measure liquid volume.
mL to oz Conversion Formula
Understand the exact conversion factor and formulas used to convert metric volume into US fluid ounces.
Formula
To convert volume in milliliters (mL) into US fluid ounces (fl oz), multiply the volume in mL by 0.033814, or divide the volume in mL by 29.57353:
Alternative: fl oz = mL ÷ 29.57353
Reverse Formula
To convert US fluid ounces back into milliliters, multiply the fluid ounce value by 29.5735:
Example Calculation
Here are step-by-step worked examples demonstrating conversions in both directions:
Converting 250 mL to fl oz
• Start with 250 mL
• Multiply: 250 × 0.033814 = 8.4535 fl oz
• Result: 250 mL = 8.45 fl oz
Converting 500 mL to fl oz
• Start with 500 mL
• Divide: 500 ÷ 29.5735 = 16.907 fl oz
• Result: 500 mL = 16.91 fl oz
Converting 12 fl oz to mL
• Start with 12 fl oz
• Multiply: 12 × 29.5735 = 354.882 mL
• Result: 12 fl oz ≈ 355 mL
Converting 750 mL to fl oz
• Start with 750 mL
• Multiply: 750 × 0.033814 = 25.3605 fl oz
• Result: 750 mL = 25.36 fl oz
Popular mL to oz Conversions
Detailed breakdown of the 13 most frequently searched milliliter to fluid ounce conversions.
15 mL to oz
30 mL to oz
50 mL to oz
100 mL to oz
200 mL to oz
250 mL to oz
330 mL to oz
355 mL to oz
473 mL to oz
500 mL to oz
750 mL to oz
946 mL to oz
1000 mL to oz
Complete mL to oz Conversion Chart
Mobile-friendly, comprehensive conversion table covering 33 standard volumetric measurements.
| Milliliters (mL) | US Fluid Ounces (fl oz) | UK Imperial Ounces (UK oz) | Common Household Equivalent |
|---|---|---|---|
| 1 mL | 0.0338 fl oz | 0.0352 UK oz | Medicinal drop (~20 drops) |
| 5 mL | 0.1691 fl oz | 0.1760 UK oz | 1 metric teaspoon (tsp) |
| 10 mL | 0.3381 fl oz | 0.3520 UK oz | 2 metric teaspoons / ½ tbsp |
| 15 mL | 0.5072 fl oz | 0.5279 UK oz | 1 metric tablespoon (tbsp) |
| 20 mL | 0.6763 fl oz | 0.7039 UK oz | Dosing cup / small shot |
| 25 mL | 0.8454 fl oz | 0.8799 UK oz | UK single spirit measure |
| 30 mL | 1.0144 fl oz | 1.0559 UK oz | Standard single shot glass |
| 40 mL | 1.3526 fl oz | 1.4078 UK oz | Large spirit pour |
| 50 mL | 1.6907 fl oz | 1.7598 UK oz | Miniature alcohol bottle (nip) |
| 75 mL | 2.5361 fl oz | 2.6396 UK oz | Small wine glass pour |
| 100 mL | 3.3814 fl oz | 3.5195 UK oz | TSA carry-on liquid limit |
| 150 mL | 5.0721 fl oz | 5.2793 UK oz | Standard wine glass (5 oz) |
| 200 mL | 6.7628 fl oz | 7.0390 UK oz | Juice carton / small flask |
| 250 mL | 8.4535 fl oz | 8.7988 UK oz | 1 metric measuring cup |
| 300 mL | 10.1442 fl oz | 10.5585 UK oz | Medium beverage glass |
| 330 mL | 11.1586 fl oz | 11.6144 UK oz | European soda / beer can |
| 355 mL | 12.0040 fl oz | 12.4943 UK oz | Standard US soda can (12 oz) |
| 400 mL | 13.5256 fl oz | 14.0780 UK oz | Large travel mug |
| 473 mL | 15.9940 fl oz | 16.6473 UK oz | 1 US liquid pint (16 oz) |
| 500 mL | 16.9070 fl oz | 17.5975 UK oz | Standard 0.5L water bottle |
| 600 mL | 20.2884 fl oz | 21.1170 UK oz | Large sports drink bottle |
| 700 mL | 23.6698 fl oz | 24.6365 UK oz | European spirits bottle |
| 750 mL | 25.3605 fl oz | 26.3963 UK oz | Standard wine / fifth bottle |
| 800 mL | 27.0512 fl oz | 28.1560 UK oz | Hydration flask |
| 900 mL | 30.4326 fl oz | 31.6755 UK oz | Large juice jug |
| 946 mL | 31.9881 fl oz | 33.2949 UK oz | 1 US liquid quart (32 oz) |
| 1000 mL | 33.8140 fl oz | 35.1951 UK oz | 1 Liter bottle |
| 1250 mL | 42.2675 fl oz | 43.9938 UK oz | 1.25 Liter carafe |
| 1500 mL | 50.7210 fl oz | 52.7926 UK oz | 1.5 Liter bottle / Magnum wine |
| 1750 mL | 59.1745 fl oz | 61.5914 UK oz | 1.75 Liter handle bottle |
| 2000 mL | 67.6280 fl oz | 70.3902 UK oz | 2 Liter soda bottle |
| 2500 mL | 84.5351 fl oz | 87.9877 UK oz | 2.5 Liter jug |
| 3000 mL | 101.4421 fl oz | 105.5852 UK oz | 3 Liter container |
Common Bottle & Container Sizes
Real-world container capacities across retail beverages, healthcare, beauty, and scientific laboratories.
🥤 Beverage Bottles
Beverage packaging uses standardized metric and US customary volumes across global supply chains:
- 330 mL Can: 11.16 fl oz (Euro soda/beer standard)
- 355 mL Can: 12.00 fl oz (US/Canada soda standard)
- 500 mL Bottle: 16.91 fl oz (Standard 0.5L water bottle)
- 750 mL Bottle: 25.36 fl oz (Standard wine & liquor fifth)
- 1000 mL (1L): 33.81 fl oz (Large water/juice bottle)
- 2000 mL (2L): 67.63 fl oz (Family size soda bottle)
💊 Medicine Bottles
Pharmaceutical liquid dosing relies on exact metric measurements with common fluid ounce equivalents:
- 5 mL Syringe: 0.17 fl oz (Pediatric liquid dose)
- 15 mL Cup: 0.51 fl oz (Standard oral medicine cup)
- 60 mL Bottle: 2.03 fl oz (Prescription liquid medicine)
- 120 mL Bottle: 4.06 fl oz (Over-the-counter syrup)
- 240 mL Bottle: 8.11 fl oz (Large cough syrup / antacid)
🧴 Cosmetic Bottles
Skincare, fragrance, and beauty products state both mL and fl oz on their labels:
- 15 mL Dropper: 0.51 fl oz (Eye serum / essential oils)
- 30 mL Bottle: 1.01 fl oz (Liquid foundation / facial oil)
- 50 mL Jar: 1.69 fl oz (Moisturizer cream / treatment)
- 100 mL Bottle: 3.38 fl oz (Fragrance spray / TSA travel limit)
- 250 mL Shampoo: 8.45 fl oz (Standard body wash bottle)
🧪 Laboratory Containers
Scientific glassware and plasticware are calibrated strictly in milliliters:
- 10 mL Test Tube: 0.34 fl oz (Sample collection tube)
- 50 mL Centrifuge Tube: 1.69 fl oz (Conical lab tube)
- 250 mL Erlenmeyer Flask: 8.45 fl oz (Titration flask)
- 500 mL Glass Beaker: 16.91 fl oz (Mixing glassware)
- 1000 mL Cylinder: 33.81 fl oz (Graduated measuring cylinder)
Real-Life Uses of mL to oz Conversion
Discover how cross-system liquid volume conversion is utilized across diverse industries and daily activities.
🍳 Cooking & Baking
European, British, and Asian recipes specify liquid ingredients in milliliters (mL), whereas North American home cooks use US fluid ounces, cups, and tablespoons. Converting 250 mL of milk or broth into 8.45 fl oz ensures recipe precision without altering culinary balance or batter consistency.
🍷 Beverage Industry
Global beverage manufacturers must print dual metric and customary volume disclosures on packaging for international trade. Distillers, breweries, and wineries convert 750 mL bottles to 25.36 fl oz and 355 mL cans to 12 fl oz to comply with customs and retail regulations.
💊 Pharmaceuticals
Medical professionals calculate exact liquid medication dosages in milliliters to prevent dosing errors. Converting pediatric oral suspensions or clinical syrups into fluid ounces helps patients and caregivers measure doses accurately using standard home spoon tools or medicine cups.
✈️ Cosmetics & Travel
Airline passenger safety regulations mandate that carry-on liquids, gels, and aerosols fit in containers of 100 mL or smaller. Travelers frequently convert 100 mL to 3.38 fl oz (often labeled as 3.4 oz) to verify airport TSA security screening compliance.
🔬 Laboratory Measurements
Scientific research and chemical manufacturing standardly utilize SI metric milliliters. However, when collaborating with US industrial plants or sourcing equipment calibrated in fluid ounces, scientists convert liquid volumes between systems to ensure exact reagent ratios.
US Fluid Ounce vs UK Fluid Ounce
Understand the historical differences and exact mathematical conversion factors between US Customary and UK Imperial fluid ounces.
Although both systems use the term "fluid ounce," a US fluid ounce is slightly larger in volume than a UK (Imperial) fluid ounce. A US fl oz is based on the US wine gallon (231 cubic inches), while a UK fl oz is based on the Imperial gallon (defined as the volume of 10 pounds of water at 62 °F).
| Comparison Property | US Fluid Ounce (US fl oz) | UK Imperial Ounce (UK fl oz) |
|---|---|---|
| Definition | 1/128 of a US liquid gallon | 1/160 of an Imperial gallon |
| Conversion Factor (mL) | 1 US fl oz = 29.5735 mL | 1 UK fl oz = 28.4131 mL |
| Mathematical Difference | 1 US fl oz is ~4.08% larger than 1 UK fl oz | 1 UK fl oz is ~3.92% smaller than 1 US fl oz |
| Pint Comparison | 1 US Pint = 16 US fl oz (473.18 mL) | 1 UK Pint = 20 UK fl oz (568.26 mL) |
| Example (500 mL) | 500 mL = 16.907 US fl oz | 500 mL = 17.598 UK fl oz |
| Primary Usage Regions | United States, US territories | United Kingdom, Canada, Australia, Ireland |
How to Convert mL to oz (Step-by-Step)
Follow these four simple steps to execute precise milliliter to fluid ounce conversions manually or mentally.
1 Step 1
Enter milliliters.
Obtain the exact volume in milliliters (mL) from your recipe, product packaging, or measuring container.
2 Step 2
Multiply by 0.033814.
Multiply the mL number by 0.033814 (or divide by 29.5735) to calculate equivalent US fluid ounces.
3 Step 3
Round if necessary.
Round the resulting fluid ounce figure to 2 decimal places for cooking or commercial label reference.
4 Step 4
Verify using calculator.
Double-check your final conversion result using our automated online mL to oz calculator widget above.
Common Conversion Mistakes
Learn about frequent pitfalls when converting between metric volume and imperial fluid ounces and how to avoid them.
Confusing weight ounces with fluid ounces
A fluid ounce (fl oz) measures liquid volume, whereas an avoirdupois ounce (oz) measures physical weight (1 oz = 28.3495 grams). For liquids with densities different from water (like honey or oil), fluid ounces and weight ounces are not equal. Prevention: Always check whether your recipe specifies fluid ounces or weight ounces.
Using UK instead of US ounces
US fluid ounces (29.5735 mL) and UK Imperial fluid ounces (28.4131 mL) differ by ~4.08%. Using the wrong conversion factor can cause precision errors in commercial recipe formulation or international trade. Prevention: Confirm whether your source material originates from the US or the UK/Commonwealth.
Incorrect rounding
Rounding conversion factors too early in intermediate steps (e.g. using 0.03 instead of 0.033814) creates compound calculation errors, especially when scaling up to multi-liter volumes. Prevention: Keep at least 5 decimal places during math, rounding only the final result.
Using wrong formula
Mistakenly multiplying by 29.5735 instead of dividing when converting mL to oz will yield an outrageously large number (e.g. 500 mL × 29.5735 = 14,786). Prevention: Remember that mL numbers are always numerically larger than fl oz numbers.
Frequently Asked Questions
20 clear, authoritative answers to common queries about milliliter and fluid ounce conversions.
How many ounces are in 1 mL?
There are exactly 0.033814 US fluid ounces in 1 milliliter. To convert any volume in milliliters to US fluid ounces, multiply the milliliter value by 0.033814 or divide it by 29.5735. In UK Imperial measure, 1 mL equals 0.035195 UK fluid ounces.
How many ounces are in 100 mL?
100 milliliters equals 3.3814 US fluid ounces. This exact conversion is widely recognized in international travel, as 100 mL represents the maximum individual container capacity permitted in carry-on baggage under airline TSA 3-1-1 security rules.
Is 500 mL equal to 16 ounces?
Not exactly. 500 mL is equal to 16.907 US fluid ounces (approx. 16.91 oz). A standard 16 fl oz measure is 1 US liquid pint (473.18 mL). Therefore, 500 mL is about 0.91 fl oz larger than a standard 16 oz pint.
Is 750 mL a standard bottle?
Yes. 750 mL is the universal international standard bottle size for wine and distilled spirits, holding 25.36 US fluid ounces. In US liquor terms, a 750 mL bottle is historically known as a "fifth" because it equals one-fifth of a US liquid gallon.
How many ounces are in a soda can?
A standard North American beverage can holds 12 US fluid ounces, which equals 354.88 mL (labeled as 355 mL). In Europe and Asia, standard beverage cans are sized at 330 mL, which equals 11.16 US fluid ounces.
Is mL metric?
Yes. The milliliter (mL) is an official metric unit of volume equal to one-thousandth of a liter (0.001 L) or one cubic centimeter (1 cm³). It is part of the International System of Units (SI) used globally in medicine, science, and trade.
What is the difference between oz and fl oz?
An ounce (oz) measures weight (mass), whereas a fluid ounce (fl oz) measures liquid volume (3D space). While 1 fl oz of pure water weighs approximately 1 oz by weight at room temperature, liquids with higher or lower densities will weigh more or less per fluid ounce.
Which ounce should I use?
Use US fluid ounces (29.5735 mL) for recipes, food packaging, and commercial products in the United States. Use UK Imperial fluid ounces (28.4131 mL) if following traditional British recipes or dealing with UK pub measures.
How accurate is this calculator?
Our online mL to oz calculator uses the exact NIST standard ratio (1 US fl oz = 29.5735295625 mL) to deliver high-precision automated calculations accurate to 6 decimal places, suitable for culinary, commercial, and scientific applications.
Why does UK ounce differ?
The UK Imperial system defined its fluid ounce in 1824 based on the volume of 1 Imperial ounce of water (28.413 mL), while the US system retained the older British wine gallon standard (29.5735 mL per fl oz), creating a 4.08% difference.
How many ounces are in 250 mL?
250 milliliters equals 8.4535 US fluid ounces. In international metric baking, 250 mL represents one standard metric cup, which is slightly larger than a traditional US customary cup of 8 fl oz (236.59 mL).
How many ounces are in 330 mL?
330 milliliters equals 11.1586 US fluid ounces (~11.16 fl oz). This volume is the standard individual beverage container size throughout Europe, Latin America, and parts of Asia for soft drinks and bottled beers.
How many ounces are in 946 mL?
946 milliliters equals 31.9881 US fluid ounces, which rounds to exactly 32 fluid ounces or 1 US liquid quart. You will find 946 mL listed on US retail cartons of broth, milk, and motor oil containers.
How many ounces are in 1000 mL (1 liter)?
1000 milliliters (1 liter) equals 33.814 US fluid ounces. One liter is equivalent to approximately 1.057 US liquid quarts, making 1000 mL slightly larger than a standard 32 fl oz quart bottle.
How do I convert fl oz back to mL?
To convert US fluid ounces back into milliliters, multiply the fluid ounce value by 29.5735. For example, 8 fl oz × 29.5735 = 236.588 mL. For UK fluid ounces, multiply by 28.4131.
What is the TSA liquid rule in fl oz and mL?
The Transportation Security Administration (TSA) 3-1-1 liquids rule permits travelers to carry liquids in containers of 100 mL (3.4 fl oz) or smaller per item, all packed inside one quart-sized clear plastic bag.
Why is a US pint 16 fl oz but an Imperial pint 20 fl oz?
The US pint contains 16 US fluid ounces (473.18 mL), whereas the UK Imperial pint contains 20 Imperial fluid ounces (568.26 mL). This makes a British pint of draught beer 20% larger in total volume than an American pint.
Does liquid temperature affect fluid ounces?
Slightly. Liquids expand when heated and contract when cooled, altering physical volume. Standard volumetric standards assume a reference temperature of 20 °C (68 °F) or 4 °C (39.2 °F) for high-precision scientific work.
Can I convert dry ounces to milliliters?
Dry ounces measure weight, so converting to mL requires knowing the dry ingredient's bulk density. For example, 1 oz of flour (28.35 g) equals ~47.8 mL because flour's bulk density is ~0.593 g/mL.
How many fluid ounces are in a standard shot glass?
In the US, a standard single shot glass is 1.5 US fluid ounces (approx. 44.36 mL), though 1 fl oz (30 mL) pony shots are common. In the UK, single shot measures are standardly 25 mL (0.88 UK oz) or 35 mL (1.23 UK oz).
mL vs Fluid Ounces
See how common volumes compare between metric and US units
How to Convert mL to Ounces
Milliliters and fluid ounces both measure volume, so no density is needed. Simply divide mL by 29.5735 to get US fluid ounces.
The Formula
Step-by-Step Example
Converting 500 mL to fluid ounces:
- Take the mL value: 500
- Divide by 29.5735: 500 ÷ 29.5735 = 16.907 fl oz
For larger metric volumes, see the mL to liters converter. To turn volume into weight, use the mL to pounds converter or the milliliters to grams tool. You can also explore every unit from the main mL to mg converter.
Common Use Cases
- Cooking — Converting between metric and US recipes.
- Beverages — Understanding bottle and can sizes.
- Medicine — Converting liquid dosages between systems.
- Travel — Understanding product sizes in different countries.
Related Converters
Other conversions you may find useful.
mL to Fluid Ounces Table
| mL | fl oz | Approx. |
|---|---|---|
| 5 | 0.169 | 1 tsp |
| 15 | 0.507 | 1 tbsp |
| 30 | 1.014 | ≈ 1 fl oz |
| 60 | 2.029 | ¼ cup |
| 120 | 4.058 | ½ cup |
| 240 | 8.115 | 1 cup |
| 355 | 12.004 | 1 can |
| 473 | 15.994 | 1 US pint |
| 750 | 25.361 | Wine bottle |
| 1000 | 33.814 | 1 liter |
Most Common mL to Ounces Conversions
Quick answers for the most frequently searched mL to oz conversions.
A standard soda or beer can in the US holds 355 mL, which is exactly 12 fluid ounces. This is one of the most recognized beverage sizes worldwide.
A standard water bottle contains 500 mL, equal to about 16.91 oz. This is slightly more than a US pint (16 oz) and a very common bottle size globally.
A standard wine bottle holds 750 mL, which equals approximately 25.36 fluid ounces. This is the universal standard for wine and many spirits.
946 mL is approximately equal to 1 US quart (32 oz). It's a common size for juice cartons, broths, and other liquid products in the United States.
1000 mL (1 liter) equals 33.81 fluid ounces. Large water bottles, soda bottles, and many cooking liquids come in this size.
1500 mL (1.5 liters) equals about 50.72 fluid ounces. This is the standard size for large water bottles and magnum wine bottles.
mL to UK Fluid Ounces
UK (imperial) fluid ounces are slightly different from US fluid ounces.
The imperial fluid ounce is slightly smaller than the US fluid ounce (29.5735 mL), so you get more UK fl oz from the same volume of liquid.
| mL | UK fl oz |
|---|---|
| 100 mL | 3.52 UK oz |
| 250 mL | 8.80 UK oz |
| 500 mL | 17.60 UK oz |
| 750 mL | 26.40 UK oz |
| 1000 mL | 35.20 UK oz |
Common Drink Bottle Sizes in Ounces
Standard beverage container sizes and their conversions.
Conversion Tools
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mL to Ounces FAQ
Common questions about converting milliliters to fluid ounces.
One US fluid ounce equals exactly 29.5735 mL. One UK (imperial) fluid ounce is slightly smaller at 28.4131 mL.
No. Both milliliters and fluid ounces measure volume. The conversion factor is the same regardless of the substance.
No. A US fl oz is 29.5735 mL while a UK imperial fl oz is 28.4131 mL. This calculator uses US fluid ounces by default.
A US cup is 8 fl oz, which equals approximately 236.6 mL. A metric cup (used in Australia) is exactly 250 mL.
Multiply the number of fluid ounces by 29.5735 to get milliliters: mL = fl oz × 29.5735. You can also use the converter above in both directions.
355 mL is equal to 12 fluid ounces. This is the standard size of a soda or beer can in the United States.
500 mL is equal to approximately 16.91 fluid ounces. A standard 500 mL water bottle is slightly larger than a US pint (16 oz).
750 mL is equal to approximately 25.36 fluid ounces. This is the standard size of a wine bottle and equals about 5 glasses of wine (5 oz each).
1 liter (1000 mL) equals 33.814 fluid ounces. This is slightly more than a US quart (32 oz) and a common size for large soda and water bottles.
A standard water bottle is 500 mL, which equals about 16.91 fluid ounces. Larger bottles come in 750 mL (25.36 oz) and 1 liter (33.81 oz) sizes. Small single-serve bottles are often 330 mL (11.16 oz).