There are 29.57 milliliters (ml) in a conventional US ounce or fluid ounce, 30 ml for an ounce according to US food labels. For a UK imperial ounce, there are 28.41 ml
Milliliters are used to measure liquids and fluid ounces is the appropriate term for the measurement of liquid materials in ounces. Usually, when ounces are mentioned it is most likely referring to US ounces unless it is explicitly stated as a UK imperial fluid ounce
Such conversions from one form of measurement to the other are especially common when trying out a new recipe.
In a moment I will explain the conversion of ounces to ml as well as the terms you should understand if you want to get familiar with cooking conversions.
If you are just looking for a short answer, there are 29.57 ml in an ounce.
Let us begin;
What is an ounce?
An ounce is an imperial measurement mostly popular in the United States while most of the world uses metric measurement
It is commonly known as the measure of mass of an item or object and is measured with a weighing scale. There is also the other type of ounce which is the fluid ounce. It is the weight of a liquid in ounces
1 measuring cup contains 8 ounces, a gallon is equal to 128 oz and a tablespoon contains 2 ounces.
There are on average 3 different types of ounces which are:
- The US customary ounce which is equal to 29.57 ml
- The US ounces for food labeling used by food industries which is equal to 30 ml
- The UK ounce which is equal to 28.41 ml
Thete isn’t much difference when making kitchen measurements or measuring reasonable quantities.
When the measurements are for laboratories or made in huge quantities e.g for industries, then accuracy is important. The little differences between the three types of ounces will affect your outcome (whatever it may be)
What is a milliliter?
A milliliter is a metric measurement used to measure the weight of a liquid. It is equal to 0.001 liter or 1000 ml = 1 liter
Milliliters are often used for smaller measurements of volume as it is easier than using ounces which can be confusing.
There are different types of ounces hence, the metric measurement of liquids milliliters and liters were introduced to make measurements easier
How to convert ounces to milliliters
The process of converting ounces to milliliters is a simple one in most cases and depending on the density of the ingredient, it can give you a figure that is only slightly more than or less than the usual figure
milliliters is the measure of the volume of liquids hence, when converting ounces to milliliters, you are most likey to be converting a liquid substance meaning, the ounces will be fluid ounces to milliliters. It is very unusual to convert dry ingredients to milliliters.
The formula for converting ounces to ml is;
Total ml = no. of oz x no. of ml in 1 oz
For example, convert 3 oz to ml
Using the formula above,
total ml = 3 oz x 29.57 (no. of ml in 1 oz)
= 88.71 ml in 3 oz
Common ounce to milliliters conversions
The table below shows the common ounces to ml conversions you will probably need in the kitchen.
| Ounces (oz) | Milliliters (ml) |
|---|---|
| 0.5 oz | 14.875 ml |
| 1 oz | 29.57 ml |
| 2 oz | 59.14 ml |
| 3 oz | 88.71 ml |
| 4 oz | 118.28 ml |
| 5 oz | 147.85 ml |
| 10 oz | 295.7 ml |
faq on ounces to milliliters conversion
Is 1 oz the same as 30ml?
No. 1 oz is exactly is 29.57 ml but it is ok to round it up to 30 ml
How many ml makes an oz?
29.57 ml approximately makes one US ounce
Is 1 oz 15 ml?
No. 1 oz is equal to 30ml approximately. 15 ml is equal to a half ounce
What is a 1 oz measure?
1 oz can be measured as 2 tablespoons or 6 teaspoons or 1/8 of a cup.
Is 10ml the same as 1 oz?
No. 10 ml is not the same as 1 oz. 1 oz = 29.57 ml
What is the same as 1 ounce?
2 tablespoons, one 1/8 cup, and 6 teaspoons are the same as one ounce but it can vary depending on the ingredient being measured.
How can I measure 1 oz at home?
You can measure 1 fluid ounce accurately as 2 measuring tablespoons or 6 measuring teaspoons
Are 2 tablespoons the same as 1 oz?
Yes 2 tablespoons is equal to 1 oz
How many ml in 1 oz of fluid
There are 29.57 approximately 30 ml in a fluid ounce
How many ml in 1 oz shot
A 1 oz shot is equal to approximately 30 ml
Is 1 oz half a cup?
No. 1 oz is not half a cup it is equal to 1/8 of a cup
How many ml in 1 oz UK
A UK fluid ounce is equal to 28.41 ml
How many ml in 1 oz of caster sugar
There are 29.81 ml in 1 oz of caster sugar
How many ml in 1 oz of sugar
There are 33.5 ml in 1 oz of sugar
How many ml in 1 oz of butter
There are 29.57 ml in 1 oz of butter
How to measure 1 oz without a scale
You can measure 1 oz without a scale using 2 teaspoons or 6 teaspoons of the ingredient
