Converting 1/3 cups in oz is easy, however it is important to note that 1/3 cup is volume (how much space does it take up) and ounces is measured by weight (how heavy is it).
So converting 1/3 cups of water to ounces, will result in a different amount then if you were to convert 1/3 cups rice to ounces.


Ounces is measured by weight. Cups are measured by volume.
Don’t fret, I’ll show you how to properly convert cups to ounces so you can use it in all of your cooking (and other) needs.
How do you convert 1/3 of a cup into ounces?
As noted above, the measurements will differ depending on the item you are converting. So here are the most common 1/3 cup to ounce conversions.
Converting 1/3 cup into Liquid Ounces
- OIL: 1/3 cup of oil equals 1/3 cup olive oil equals 2.5 ounces
- COCONUT OIL: 1/3 cup of coconut oil equals 2.57 ounces
- BUTTER: 1/3 cup of butter equals 2.66 ounces
- JUICE: 1/3 cup of fruit juice equals 2.7 ounces
- WATER: 1/3 cup of water equals 2.78 ounces
- BROTH: 1/3 cup of broth (vegetable, chicken, beef) equals 2.78 ounces
- MILK: 1/3 cup of milk equals 2.88 ounces
Converting 1/3 cup into Dry Ounces
- FLOUR: 1/3 cup of all-purpose flour equals 1.41 ounces
- COCOA POWDER: 1/3 cup cocoa powder equals 1.41 ounces
- POWDERED SUGAR: 1/3 cup of powdered sugar equals 1.5 ounces
- OATS: 1/3 cup of uncooked oats equals 1.83 ounces
- CHOCOLATE CHIPS: 1/3 cup of chocolate chips equals 1.88 ounces
- RICE: 1/3 cup of basmati rice equals 2.12 ounces
- QUINOA: 1/3 cup of quinoa equals 2.12 ounces
- GRANULATED SUGAR: 1/3 cup of granulated sugar equals 2.35 ounces
- BROWN SUGAR: 1/3 cup of brown sugar equals 2.59 ounces
- BAKING POWDER: 1/3 cup of baking powder equals 2.7 ounces
Printable Conversion Sheet
As you can see the average 1/3 cup equals about 2.5 ounces (2 1/2) but depending on the weight of the item you are measuring, it can differ. This printable guide can help to take the guesswork out of converting ounces to cups.


How to Convert 1/3 cup to Ounces
Equipment
- Measuring cups
Ingredients
Converting 1/3 cup into Liquid Ounces
- OIL: 1/3 cup of oil equals 1/3 cup olive oil equals 2.5 ounces
- COCONUT OIL: 1/3 cup of coconut oil equals 2.57 ounces
- BUTTER: 1/3 cup of butter equals 2.66 ounces
- JUICE: 1/3 cup of fruit juice equals 2.7 ounces
- WATER: 1/3 cup of water equals 2.78 ounces
- BROTH: 1/3 cup of broth vegetable, chicken, beef equals 2.78 ounces
- MILK: 1/3 cup of milk equals 2.88 ounces
Converting 1/3 cup into Dry Ounces
- FLOUR: 1/3 cup of all-purpose flour equals 1.41 ounces
- COCOA POWDER: 1/3 cup cocoa powder equals 1.41 ounces
- POWDERED SUGAR: 1/3 cup of powdered sugar equals 1.5 ounces
- OATS: 1/3 cup of uncooked oats equals 1.83 ounces
- CHOCOLATE CHIPS: 1/3 cup of chocolate chips equals 1.88 ounces
- RICE: 1/3 cup of basmati rice equals 2.12 ounces
- QUINOA: 1/3 cup of quinoa equals 2.12 ounces
- GRANULATED SUGAR: 1/3 cup of granulated sugar equals 2.35 ounces
- BROWN SUGAR: 1/3 cup of brown sugar equals 2.59 ounces
- BAKING POWDER: 1/3 cup of baking powder equals 2.7 ounces
Instructions
How to Measure Dry Ingredients:
- Overfill the measuring cup.
- Use a butter knife to scrape off the top to have a perfect level measure.
How to Measure Wet Ingredients:
- Set a clear liquid measuring cup flat on the counter.
- Pour in ingredients until you believe you have the correct amount.
- Crouch down to eye level to ensure the measurement is accurate.
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