Not sure how many ounces are in 1/3 cup? In this post, you’ll learn how to convert 1/3 cup to Oz for both liquid and dry ingredients.

When following a recipe, sometimes you’ll need to convert 1/3 cup to ounces. The simple answer is there are 2.67 (or 2 and 2/3)ounces in 1/3 cup for liquid measurements. However, there are some nuances below to consider.

For dry ingredients, we recommend using a kitchen scale to convert cups to ounces as weights vary depending on the type of ingredient. For example, 1/3 cup of sugar weighs more than 1/3 cup of flour. 

1/3 Cup in Ounces (Using Liquid Fluid Ounces)

When it comes to liquids, the question of how many ounces in 1/3 cup depends on the measurement system. In the US, there are US Customary units that refer to those used in recipes and found in the measuring cups sold in kitchenware stores. However, there are also the US Legal units used on nutrition labels and food packaging.

People in other countries such as Canada, Australia and Europe use metric units. Older British recipes still use UK Imperial measures, although the system is seldom used today.

Here we provide the complete conversion chart for 1/3 cup in all these measurement systems to fluid ounces:

Original amount	Fluid ounces(US Customary)	Fluid ounces(US Legal)	Fluid ounces (UK Imperial)
1/3 Cup (US Customary)	2.67	2.63	2.77
1/3 Cup (US Legal)	2.7	2.67	2.81
1/3 Cup (Metric)	2.81	2.77	2.93
1/3 Cup (UK Imperial)	3.2	3.16	3.33

1/3 Cup in Ounces Using Weight Measurements

Don’t forget that you can also convert 1/3 cup into a weight measurement using a kitchen scale. This is standard practice for dry ingredients such as flour. Here are some common conversions:

Volume (Cups)	Ounces (weight)
1/3 cup flour	1.33 oz
1/3 cup granulated sugar	2.33 oz
1/3 cup cocoa	1 oz
1/3 cup almonds (whole)	1.67 oz
1/3 cup walnuts (chopped)	1.33 oz
1/3 cup rice (dry)	2 oz
1/3 cup applesauce	3 oz
1/3 cup milk	2.67 oz
1/3 cup butter	2.67 oz
1/3 cup honey	4 oz
1/3 cup oil	2.33 oz
1/3 cup water	2.67 oz

Refer to this conversion chart to see weight conversions for other ingredients.

Just remember that ounces by weight as measured on a kitchen scale are completely different from fluid ounces, which are a volume measurement. The conversion from oz to fl oz varies depending on the density of the ingredient and is therefore seldom done.

Types of Measuring Cups

It’s always a good idea to check your measuring cups carefully to see what exactly you’re using! If you’ve inherited kitchen measures or purchased from antique shops, it’s quite possible you’ve got older cups. Here are the definitions to look for on the labeling:

• 1 cup (US Customary) = 8 fl oz or 237 ml
• 1 cup (US Legal) = 8 fl oz or 240 mL (the fl oz refers to Legal ounces here)
• 1 cup (UK Imperial) = 10 fl oz or half pint (all references to Imperial units)
• 1 cup (metric) = 250 mL

Measurement Tips

Here are some helpful tips for when you’re trying to take measurements when converting 1/3 cup to ounces:

• Use appropriate measuring cups: you can buy 1-cup measures that also have fluid ounces for instant conversion.
• Use shot glasses for fluid ounces: You can measure individual fluid ounces easily using shot glasses and pouring the amounts into a cup or glass for use in a recipe.
• Use a kitchen scale for dry ingredients: Having a kitchen scale is very handy for measuring weights in ounces. Place the empty measure on the scale to zero it before adding the ingredient you want to measure. The tables above will help you to convert to cups. 
• Release sticky substances: Use nonstick cooking spray to thinly coat measuring cups and spoons being used for sticky substances like honey or molasses. That way the liquid won’t stick do you get a more accurate measure.

FAQs

What Measurements Make Up 1/3 of A Cup?

You can make 1/3 cup using 2.67 fluid ounces for liquid such as water. 

What Is the Measuring Method for 1/3 Cup Milk?

You can measure 1/3 cup milk as 2.67 fluid ounces. 

What is the Measuring Method for 1/3 Cup Sugar?

A 1/3 cup sugar is measured by weight as 2.33 ounces. Fluid ounces are not a correct measurement for dry ingredients, but the approximate equivalent is 2.33 oz for 1/3 cup sugar.