104 LearnersLast updated on July 9th, 2025
Ounce to mL Conversion
We can measure the volume of liquids using units like milliliters (mL), liters, fluid ounces, and gallons. Different units are used to measure different volumes. An ounce is a small unit of measurement that we commonly use for smaller quantities of liquid, like a cup of juice or a small bottle of water. A milliliter (mL) is a metric unit of volume, often used to measure small amounts, like a dose of medicine. Sometimes we need to change ounces to milliliters to make it easier to understand quantities. In this topic, we will learn how to convert ounces to milliliters.
What is an Ounce?
An ounce is a unit of volume used in the United States to measure liquid quantities. It is part of the imperial system and is commonly used in recipes and for beverages. One fluid ounce is equal to approximately 29.5735 milliliters (mL). The symbol for fluid ounces is "fl oz," and it is a standard measurement in cooking and serving.
What is a Milliliter?
A milliliter is a unit of volume in the metric system, which is widely used around the world for measuring liquid quantities. The metric system is based on powers of 10, which makes unit conversions straightforward.
One milliliter is equal to one-thousandth of a liter, meaning there are 1,000 milliliters in one liter (1,000 mL = 1 L). The symbol for milliliters is mL, and it is commonly used in medicine and cooking for precise measurements.
Ounce to mL Formula
To convert ounces to milliliters, we use the following formula: 1 fluid ounce = 29.5735 milliliters
Milliliters = Ounces × 29.5735 So, to convert from ounces to milliliters, you multiply the number of ounces by 29.5735.
Conversely, to convert from milliliters to ounces, you divide the number of milliliters by 29.5735.
How to Convert Ounces to mL?
Converting ounces (fl oz) to milliliters (mL) is simple using a standard conversion factor. Since 1 fluid ounce is equal to 29.5735 milliliters, we can convert ounces to milliliters by multiplying the number of ounces by 29.5735.
Steps to convert ounces to mL: Write down the volume in ounces. Multiply the value by 29.5735 to get the volume in milliliters. Formula: Milliliters = Ounces × 29.5735
Ounce to mL Conversion Chart
When we measure liquids, sometimes we use ounces (fl oz) and sometimes we use milliliters (mL). We use simple conversions to understand how much something in ounces is in milliliters. Below is a chart that shows us the ounce-to-milliliter conversions.
Common Mistakes and How to Avoid Them in Ounce to mL Conversion
When converting ounces to milliliters, people often make mistakes. Here are some common mistakes to get a better understanding of the concepts of conversions.
Mistake 1
Using the wrong conversion factor
People get confused and use incorrect values for conversion, such as 30 instead of 29.5735.
Mistake 2
Rounding too soon
Individuals might round numbers too early while calculating, which can lead to incorrect results. For example, instead of writing 8 × 29.5735 = 236.59, they might round it to 240, which is not accurate.
Mistake 3
Misplacing decimal points
People get confused and place the decimal point incorrectly, which leads to improper values. For example, instead of writing the value for 10 ounces as 295.735 mL, they write it as 2,957.35 mL.
Mistake 4
Incorrect use of formula
Individuals get confused and use the incorrect formula. For example, instead of multiplying, they divide. To convert any value from ounces to milliliters, we multiply ounces by 29.5735, not divide.
Mistake 5
Misunderstanding the relationship between ounces and liters
People often get confused about ounces and liters. They might think 0.5 ounces equals 5 liters, but it actually equals 14.7868 milliliters. Remember, 1 ounce is equal to 29.5735 milliliters, so half an ounce (0.5 ounces) is 14.7868 milliliters.
Ounce to mL Conversion Examples
Problem 1
Convert 12 ounces to mL
12 ounces = 354.882 mL
Explanation
We know the conversion factor: 1 ounce = 29.5735 mL Now, multiply 12 by the conversion factor: 12 × 29.5735 = 354.882 mL.
Problem 2
Convert 5 ounces to mL.
Solution: Converting 5 ounces to mL gives us 147.8675 mL.
Explanation
Use the conversion factor: 1 ounce = 29.5735 mL 5 × 29.5735 = 147.8675 mL
Problem 3
A bottle contains 20 ounces of liquid. What is the volume in milliliters?
The volume of the liquid in milliliters is 591.47 mL.
Explanation
Convert 20 ounces to milliliters: 20 ounces = 20 × 29.5735 = 591.47 mL
Problem 4
A container holds 8 ounces of juice. What is its volume in milliliters?
The volume in milliliters is 236.59 mL.
Explanation
Convert 8 ounces to milliliters: 8 ounces = 8 × 29.5735 = 236.59 mL
Problem 5
Converting 15 ounces to mL
15 ounces = 443.6025 mL
Explanation
Step 1: Use the conversion factor: 1 ounce = 29.5735 mL
Step 2: Multiply 15 by 29.5735: 15 × 29.5735 = 443.6025 mL
FAQs on Ounce to mL Conversion
1.How many milliliters is 1 ounce?
2.What is 6 ounces in milliliters?
3.Is 3 ounces a large volume?
4.How do I convert 10 ounces to milliliters?
Important Glossaries for Ounce to mL Conversion
- Conversion: The process of changing one unit of measurement into another. For example, converting ounces to milliliters.
- Volume: The amount of space that a substance or object occupies, often measured in liters or milliliters.
- Imperial System: A system of weights and measures originally developed in England and used in the United States.
- Metric System: A decimal-based system of measurement used widely around the world, including units like liters and milliliters.
- Precision: The quality of being exact and accurate, which is essential in measurement conversions.
Seyed Ali Fathima S
About the Author
Seyed Ali Fathima S a math expert with nearly 5 years of experience as a math teacher. From an engineer to a math teacher, shows her passion for math and teaching. She is a calculator queen, who loves tables and she turns tables to puzzles and songs.
Fun Fact
: She has songs for each table which helps her to remember the tables
