Fluid ounce to Milliliter Converter
Enter the value that you want to convert fluid ounce (fl oz) to milliliter (mL) or milliliter to fluid ounce.Also written as FL OZ to ML conversion.
1 fluid ounce = 28.4130625 milliliter
Formula: milliliter = fluid ounce value × 28.4130625
FL OZ to ML — fluid ounce to milliliter
10 fluid ounce = 284.13062 milliliter
Popular Volume Converters:
Converting Fluid ounce to Milliliter
The Fluid ounce Explained
Fluid ounce (fl oz) is a unit of volume measurement. 1 fluid ounce is equal to 28.4130625 milliliter.
The Milliliter Explained
Milliliter (mL) is a unit of volume measurement. 1 milliliter is equal to 0.0351951 fluid ounce.
Volume Measurement Systems
Volume units are particularly confusing because the US and UK gallons differ (US gallon = 3.785 L, UK gallon = 4.546 L), as do their pints, cups, and fluid ounces. Cooking, fuel economy, beverage production, and pharmaceutical compounding all require precise volume conversions. Laboratory work uses milliliters and liters while US recipes specify cups, tablespoons, and fluid ounces.
fluid ounce to milliliter metric conversion table
| 0.01 fl oz | = | 0.28413 mL |
| 0.1 fl oz | = | 2.84131 mL |
| 1 fl oz | = | 28.41306 mL |
| 2 fl oz | = | 56.82612 mL |
| 3 fl oz | = | 85.23919 mL |
| 4 fl oz | = | 113.65225 mL |
| 5 fl oz | = | 142.06531 mL |
| 6 fl oz | = | 170.47837 mL |
| 7 fl oz | = | 198.89144 mL |
| 8 fl oz | = | 227.30450 mL |
| 9 fl oz | = | 255.71756 mL |
| 10 fl oz | = | 284.13062 mL |
| 11 fl oz | = | 312.54369 mL |
| 12 fl oz | = | 340.95675 mL |
| 13 fl oz | = | 369.36981 mL |
| 14 fl oz | = | 397.78287 mL |
| 15 fl oz | = | 426.19594 mL |
| 16 fl oz | = | 454.60900 mL |
| 17 fl oz | = | 483.02206 mL |
| 18 fl oz | = | 511.43512 mL |
| 19 fl oz | = | 539.84819 mL |
| 20 fl oz | = | 568.26125 mL |
| 30 fl oz | = | 852.39188 mL |
| 40 fl oz | = | 1136.52250 mL |
| 50 fl oz | = | 1420.65312 mL |
| 60 fl oz | = | 1704.78375 mL |
| 70 fl oz | = | 1988.91438 mL |
| 80 fl oz | = | 2273.04500 mL |
| 90 fl oz | = | 2557.17562 mL |
| 100 fl oz | = | 2841.30625 mL |
| 200 fl oz | = | 5682.61250 mL |
| 300 fl oz | = | 8523.91875 mL |
| 400 fl oz | = | 11365.22500 mL |
| 500 fl oz | = | 14206.53125 mL |
| 600 fl oz | = | 17047.83750 mL |
| 700 fl oz | = | 19889.14375 mL |
| 800 fl oz | = | 22730.45000 mL |
| 900 fl oz | = | 25571.75625 mL |
| 1000 fl oz | = | 28413.06250 mL |
How to Convert FL OZ to ML (Fluid ounce to Milliliter)?
We can convert fluid ounce to milliliter by using an example.
Example:
Convert 20 Fluid ounce to Milliliter?
We know 1 Fluid ounce = 28.4130625 milliliter; 1 Milliliter = 0.0351951 fluid ounce.
20 fluid ounce = ___mL
20 × 28.4130625 = 568.26125 mL (we know 1 fluid ounce = 28.4130625 milliliter)
Answer:
20 fluid ounce = 568.26125 milliliter
How to Convert Fluid Ounces to Milliliters (Step-by-Step)
Converting US fluid ounces to milliliters is one of the most common volume conversions, used in bartending, baby feeding, food labeling, and international cooking. One US fluid ounce equals 29.5735 mL.
- Write down the volume in US fluid ounces.
- Multiply by 29.5735 to get milliliters.
- Round to the nearest mL for practical use.
- For a quick estimate, multiply by 30.
Fluid Ounces to Milliliters Quick Reference
Standard US fluid ounce amounts and their mL equivalents for bartending, cooking, and food labeling:
| Fluid ounce | Milliliter |
|---|---|
| 0.5 fl oz | 14.79 mL |
| 1 fl oz | 29.57 mL |
| 1.5 fl oz | 44.36 mL |
| 2 fl oz | 59.15 mL |
| 4 fl oz | 118.29 mL |
| 8 fl oz | 236.59 mL |
| 12 fl oz | 354.88 mL |
| 16 fl oz | 473.18 mL |
Solved Examples: Fluid Ounces to mL
Question 1: A cocktail recipe calls for 2 oz of vodka. How many mL?
Solution:
mL = fluid ounces × 29.5735
= 2 × 29.5735
= 59.15 mL
Answer: 2 fl oz = 59 mL (a double shot / 60 mL in metric bartending).
Question 2: A baby bottle holds 8 oz. Express in mL.
Solution:
mL = 8 × 29.5735
= 236.59 mL
Answer: 8 fl oz = 237 mL (baby bottles typically show 240 mL markings).
Question 3: A food label says the serving size is 3.5 fl oz. Convert to mL.
Solution:
mL = 3.5 × 29.5735
= 103.51 mL
Answer: 3.5 fl oz = 104 mL.
Question 4: Convert 16.9 fl oz (standard water bottle) to mL.
Solution:
mL = 16.9 × 29.5735
= 499.79 mL
Answer: 16.9 fl oz = 500 mL (the standard metric water bottle size).
Practice Questions
Try solving these on your own to test your understanding:
- Convert 5 fluid ounces to mL. (Answer: 147.87 mL)
- How many mL in a 20-oz sports drink? (Answer: 591.5 mL)
- Convert 0.75 oz of vanilla extract to mL. (Answer: 22.2 mL)
- A pint glass holds 16 oz. Express in mL. (Answer: 473 mL)
- Convert 33.8 fl oz to mL. (Answer: 1,000 mL = 1 liter)
Bartending: Ounces to mL for International Recipes
US cocktail recipes use ounces, but international bartending (IBA standards) uses mL. Key conversions: a standard US jigger = 1.5 oz = 44 mL (international bars round to 45 mL). A pony jigger = 1 oz = 30 mL. A dash = about ⅛ oz = 3.7 mL. Competition bartenders measure in mL for precision. When adapting a US recipe calling for "¾ oz" of a modifier, measure 22 mL.
Food Labeling: FDA Requirements
US FDA nutrition labels must show serving sizes in both customary (fl oz) and metric (mL) units. A serving of juice is typically 8 fl oz (240 mL), while a beverage serving may be listed as 12 fl oz (355 mL). The slight rounding (240 instead of 236.6 mL) is permitted by FDA labeling regulations. This dual labeling helps consumers worldwide understand American food products.
US Fluid Ounce vs. UK Fluid Ounce
The US fluid ounce (29.5735 mL) differs from the UK imperial fluid ounce (28.4131 mL). The UK ounce is about 4% smaller. While the difference is minor for a single ounce, it compounds: a UK pint (20 imperial fl oz = 568 mL) is significantly larger than a US pint (16 US fl oz = 473 mL). When converting, always confirm which system the recipe uses.
Key Takeaways
- Multiply US fluid ounces by 29.5735 to get mL.
- Quick rule: 1 fl oz ≈ 30 mL (used in bartending and medicine).
- Standard jigger (1.5 oz) = 44 mL; soda can (12 oz) = 355 mL.
- US fluid ounces (29.57 mL) ≠ UK imperial fluid ounces (28.41 mL).
- FDA labels round slightly: 8 fl oz is shown as 240 mL (exact: 236.6 mL).
- A standard 16.9-oz water bottle = 500 mL exactly.
Fluid ounce to Milliliter Conversion Formula
milliliter = fluid ounce × 28.4130625
1 fluid ounce = 28.4130625 milliliter
1 milliliter = 0.0351951 fluid ounce
Reverse: fluid ounce = milliliter × 0.0351951
Frequently Asked Questions
How many milliliter are in 1 fluid ounce?
There are 28.4130625 milliliter in 1 fluid ounce. To convert fluid ounce to milliliter, multiply the value by 28.4130625.
How do I convert fluid ounce to milliliter?
Multiply your fluid ounce value by 28.4130625 to get the equivalent in milliliter. For example, 5 fluid ounce = 5 × 28.4130625 = 142.06531 milliliter.
How do I convert milliliter to fluid ounce?
Multiply your milliliter value by 0.0351951 to get the equivalent in fluid ounce. Alternatively, divide by 28.4130625.
What is 10 fluid ounce in milliliter?
10 fluid ounce is equal to 284.13062 milliliter.
What is 100 fluid ounce in milliliter?
100 fluid ounce is equal to 2841.30625 milliliter.