Converting ounces to milliliters is a common need whether you’re cooking, traveling, handling cosmetic products, or measuring liquid medications. This page provides a fast and accurate oz to ml converter backed by reliable conversion formulas and real-world examples. If you need to convert US fluid ounces to milliliters, you’ll find everything you need instantly with our converter.
Fluid Ounces to Milliliters Converter
1 US fl oz = 29.5735 mL
1 UK fl oz = 28.4131 mL
What Is 1 oz in ml?
1 US fluid ounce (fl oz) = 29.5735 milliliters (ml)
This is the standard conversion used in the United States and internationally when converting fluid ounces (not weight ounces) to milliliters.
To convert ounces to milliliters manually, use the formula:
Milliliters = Fluid Ounces × 29.5735
For example:
- 1 oz = 29.57 ml
- 2 oz = 59.15 ml
- 4 oz = 118.29 ml
- 8 oz = 236.59 ml
- 16 oz = 473.18 ml
- 32 oz = 946.35 ml
This conversion applies specifically to fluid ounces (fl oz), commonly used to measure liquid volumes.
Ounces to Milliliters Chart – Quick Conversions
Use this oz to ml chart for fast lookups of common volumes:
| Ounces (oz) | Milliliters (ml) |
|---|---|
| 1 oz | 29.57 ml |
| 2 oz | 59.15 ml |
| 3 oz | 88.72 ml |
| 3.4 oz | 100.55 ml |
| 4 oz | 118.29 ml |
| 8 oz | 236.59 ml |
| 12 oz | 354.88 ml |
| 16 oz | 473.18 ml |
| 20 oz | 591.47 ml |
| 24 oz | 709.76 ml |
| 32 oz | 946.35 ml |
| 1.7 oz | 50.27 ml |
This covers the most frequently searched conversions like 3.4 oz to ml (used for travel-size liquids), 8 oz to ml (standard drinking glass), and 1.7 oz to ml (commonly found in skincare products).
How to Use the oz to ml Converter
If you’re looking to convert ounces to milliliters accurately, this oz to ml converter is designed to give you fast, precise results—whether you’re using US fluid ounces or UK imperial ounces. From converting 1 oz to ml to bulk values like 32 oz to ml, the tool handles it all in seconds
Step-by-Step Instructions
- Enter the number of ounces (oz):
Type the value you need to convert. This could be any measurement, from 3.4 oz to ml (commonly searched for travel liquids) to 16 oz to ml (a standard water bottle). - Select the measurement system – US or UK:
Choose whether your ounce value is based on the US fluid ounce (commonly used in recipes, drinks, and packaging in North America) or the UK fluid ounce (used in older British recipes and packaging).- 1 US fl oz = 29.5735 ml
- 1 UK fl oz = 28.4131 ml
- 1 US oz to ml = 29.57 ml
- 1 UK oz to ml = 28.41 ml
- View your result instantly:
The tool will automatically calculate and display the correct value in milliliters.
Whether you’re entering 2 oz, 4 oz, 8 oz, or 24 oz, you’ll get the ml value with precision.
Understanding Fluid Ounces (fl oz) vs. Milliliters (ml)
What is a fluid ounce?
A fluid ounce (fl oz) is a unit of volume typically used in the United States for measuring liquids. It should not be confused with an ounce (oz) of weight. In the U.S. measurement system:
- 1 fl oz = 29.5735 ml
In the UK/imperial system:
- 1 UK fl oz = 28.4131 ml
This guide and converter focus on US fluid ounces, which are most commonly used in recipes, product labels, and daily measurements in North America.
What is a milliliter?
A milliliter (ml) is part of the metric system. It’s widely used in most countries for medical, culinary, and scientific purposes.
- 1000 ml = 1 liter
- 1 ml = 0.0338 fl oz
Common Uses of oz to ml Conversion
In Cooking and Baking
Most U.S.-based recipes use ounces, while international ones use milliliters. Knowing exact conversions like 4 oz to mlor 8 oz to ml ensures consistent results. For example:
- A standard measuring cup (8 oz) equals 236.59 ml
- A tablespoon (0.5 oz) equals approximately 14.79 ml
In Skincare and Beauty Products
Cosmetic products often list sizes in ounces. For example:
- A 1.7 oz serum = 50.27 ml
- A 3.4 oz perfume = 100.55 ml
These are especially important when buying international products or comparing costs per ml.
In Travel
TSA regulations allow liquids in containers of no more than 3.4 oz, which equals 100.55 ml.
This is why the 3.4 oz to ml conversion is one of the most searched online.
In Healthcare and Medicine
Liquid medicines may be prescribed in ounces or milliliters. For safety and accuracy, converting 1 oz to ml or 2 oz to mlcan prevent under- or overdosing.
In Beverages and Food Packaging
Drink bottles, protein shakes, and canned drinks often show volume in ounces, but ml is more commonly used in other parts of the world.
- A 12 oz can of soda = 354.88 ml
- A 16 oz water bottle = 473.18 ml
- A 20 oz sports drink = 591.47 ml
- A 24 oz energy drink = 709.76 ml
- A 32 oz jug = 946.35 ml
More Tools You May Like
If you’re working with measurements across different systems, these related converters can save time and ensure accuracy. Explore more tools built for real-world use in your kitchen, classroom, lab, or travel routine.
➤ ml to oz Converter
Need to reverse the conversion? Quickly convert milliliters to ounces with this tool—perfect for recipes, beverages, and travel-sized products where ml is the labeled unit.
➤ Grams to Cups Converter
Ideal for baking and cooking, this tool helps you convert grams to cups for ingredients like flour, sugar, butter, and more—based on ingredient type and density for precision.
➤ ml to tsp Converter
Convert milliliters to teaspoons in one click—useful for measuring medicine, baby formula, or small quantities of liquids in recipes.
➤ ml to Cups Converter
Need to scale a recipe or understand how much liquid goes into a measuring cup? This tool converts milliliters to cups in seconds and supports both US and metric cup standards.
Each of these tools is designed to provide fast, reliable conversions with no guesswork. Bookmark them for future use or share with someone who needs simple, accurate measurement help.
Frequently Asked Questions (oz to ml)
1. How many ml is 1 oz?
In the US measurement system, 1 fluid ounce (fl oz) equals 29.5735 milliliters (ml).
If you’re using UK imperial fluid ounces, 1 oz equals 28.4131 ml.
2. What is the difference between US oz and UK oz?
The US fluid ounce is larger, measuring 29.5735 ml, while the UK (imperial) fluid ounce is 28.4131 ml. This small difference can matter in recipes, travel bottles, or health-related liquid doses.
3. How many ml is 3.4 oz?
- US fluid ounces: 3.4 oz = 100.55 ml
- This size is especially relevant for air travel, as the TSA limit for carry-on liquids is 100 ml.
4. How many ml in 16 oz?
- US fluid ounces: 16 oz = 473.18 ml
This is the size of a standard large water bottle or travel tumbler.
5. Is 1 oz the same as 30 ml?
Not exactly. 1 oz = 29.57 ml, so 30 ml is slightly more than 1 oz. While close enough for rough estimates, it’s best to use exact values in cooking, medicine, or scientific contexts.
6. How do I convert fl oz to ml manually?
Use this formula:
Milliliters = Fluid ounces × 29.5735 (for US oz)
For example, 8 oz × 29.5735 = 236.59 ml
7. How many ml is 8 oz?
- US fluid ounces: 8 oz = 236.59 ml
- UK fluid ounces: 8 oz = 227.30 ml
8. How much is 1.7 oz in ml?
- US fluid ounces: 1.7 oz = 50.27 ml
This size is common in skincare, perfumes, and lotions.
9. What is 32 oz in ml?
- US fluid ounces: 32 oz = 946.35 ml
This is nearly 1 liter and often used for large drink containers.
10. Why is 3.4 oz used for travel liquids?
Because 3.4 oz equals about 100 ml, which meets international carry-on liquid restrictions. It’s the maximum allowed per container for most airlines, according to TSA guidelines.
11. Can I use the same conversion for solid ounces?
No. Fluid ounces measure volume, while solid ounces measure weight. Converting solid oz to ml depends on the densityof the substance (e.g., oil vs. flour vs. honey). This converter only works for fluid ounces (fl oz).