### What is an Ounce?

An ounce whose abbreviation is oz is both an Imperial British unit and a US Customary unit of weight. There are two types of ounces and they are fluid ounces and ounces.

### Difference Between Fluid Ounces and Ounces.

A fluid ounce is used for the measurement of fluids and their volumetric properties, whereas an ounce is used for the measurement of the mass and weight of the solid materials.

### What is a Milliliter.

A milliliter also abbreviated as ml is a metric unit of volume that is equal to one thousandth of a liter. It is a measure for both liquids and gases

### Formula to Convert Fluid Ounces to Milliliters.

To do this, you need to know the conversion rate which comes from how the two units relate.

We are told that 1 fluid ounce is equivalent to 29.574ml.

Therefore, to convert Fluid ounces to ml, we multiply the ounces by 29.574 .

### Example 1:

Convert 15 Fluid ounces to milliliters.

**= 15 x 29.574 **

**= 443.61 ml.**

### Formula to Convert Ounces to Milliliters.

Since we know that 1 ounce is equivalent to 29.57. Therefore, to convert oz to ml, we multiply the oz value by 29.754.

### Example 2:

Convert 20 ounces to milliliters.

**= 20 x 29.574**

**= 591.48 ml**