Fl. Oz. vs. Oz. — What's the Difference?
By Tayyaba Rehman & Fiza Rafique — Published on February 7, 2024
Fl. Oz. (fluid ounce) measures volume, primarily used for liquids, while Oz. (ounce) measures weight, applicable to both solids and liquids.
Difference Between Fl. Oz. and Oz.
Table of Contents
ADVERTISEMENT
Key Differences
Fl. Oz. is a unit of volume in the Imperial and U.S. customary measurement systems, used primarily for liquids. One Fl. Oz. equals approximately 29.57 milliliters. Oz., or ounce, is a unit of weight in the same systems, with one ounce equaling approximately 28.35 grams.
Fl. Oz. is often used in recipes and on food labels to measure the volume of beverages or liquid ingredients. It is not suitable for measuring solid items. In contrast, Oz. is versatile, measuring the weight of both solid and liquid substances.
When measuring cooking ingredients, Fl. Oz. is used for liquids like oil or milk. The measurement is not affected by the ingredient's density. However, the weight in Oz. can vary significantly for different ingredients of the same volume due to density differences.
In the pharmaceutical industry, Fl. Oz. is commonly used to specify the volume of liquid medicines. On the other hand, Oz. is used to indicate the weight of various items, from food products to postal items.
Fl. Oz. and Oz. are often confused, but they serve distinct purposes. Using Fl. Oz. for liquids ensures accurate volume measurement, while Oz. provides an accurate measure of weight, crucial in many fields like cooking and shipping.
ADVERTISEMENT
Comparison Chart
Measurement Type
Volume
Weight
Common Use
Liquids
Solids and Liquids
Equivalent
1 Fl. Oz. ≈ 29.57 mL
1 Oz. ≈ 28.35 grams
Application
Beverages, liquid ingredients
Food weight, postal items
Industry Relevance
Food and beverage, pharmaceuticals
Cooking, shipping, retail
Compare with Definitions
Fl. Oz.
An Imperial and U.S. customary unit for measuring liquids.
Fill the tank with 16 Fl. Oz. of oil.
Oz.
A unit of weight measurement in the Imperial and U.S. systems.
The package weighs 8 Oz.
Fl. Oz.
Used in cooking to specify liquid quantities.
I added 5 Fl. Oz. of water to the mixture.
Oz.
Applicable to both solid and liquid measurements.
This bottle of juice weighs about 10 Oz.
Fl. Oz.
Common in beverage labeling for capacity.
This bottle contains 12 Fl. Oz. of soda.
Oz.
Essential in postal services for determining postage.
The letter must be under 16 Oz. to avoid extra postage.
Fl. Oz.
A standard in the pharmaceutical industry for liquid medicines.
The cough syrup dosage is 1 Fl. Oz.
Oz.
Used in retail for pricing items by weight.
These apples are $2.99 per Oz.
Fl. Oz.
A unit of volume measurement for liquids.
The recipe calls for 2 Fl. Oz. of lemon juice.
Oz.
Commonly used in cooking to measure ingredient weight.
I need 4 Oz. of chocolate for the recipe.
Oz.
An unreal, magical, often bizarre place
Regarded New York City as the Oz of the Northeast.
Oz.
Australia.
Oz.
Abbreviation of ounce; any of various units of weight and volume.
Add 8 oz of flour.
Common Curiosities
How many grams are in an Oz.?
One Oz. is approximately 28.35 grams.
What does Oz. stand for?
Oz. stands for ounce, a unit for measuring weight.
Can I use Fl. Oz. and Oz. interchangeably?
Fl. Oz. is for volume and Oz. is for weight.
How many Fl. Oz. are in a cup?
There are 8 Fl. Oz. in one cup.
Can I measure solids in Fl. Oz.?
No, Fl. Oz. is intended for liquid measurements only.
What does Fl. Oz. stand for?
Fl. Oz. stands for fluid ounce, a unit for measuring volume.
Is Oz. used in cooking outside the U.S.?
Yes, but many countries use the metric system (grams) instead.
How do I convert Fl. Oz. to mL?
Multiply the number of Fl. Oz. by 29.57 to convert to milliliters.
How do I convert Oz. to grams?
Multiply the number of Oz. by 28.35 to convert to grams.
Is Fl. Oz. used globally?
Fl. Oz. is mainly used in countries that follow the Imperial or U.S. customary systems.
Do all liquids weigh the same in Fl. Oz. and Oz.?
No, the weight in Oz. can vary depending on the liquid's density.
Are there different types of Oz.?
Yes, there are different types like troy ounces, but the most common is the avoirdupois ounce.
Is Oz. relevant in mailing and shipping?
Yes, it is often used to determine postage based on the weight of parcels.
Can I measure gas in Fl. Oz.?
Technically yes, but Fl. Oz. is typically used for liquids, not gases.
Why is Fl. Oz. important in recipes?
Accurate Fl. Oz. measurements ensure the correct liquid proportions in cooking.
Share Your Discovery
Previous Comparison
Ice Cream vs. Frozen Dessert
Next Comparison
American Dad vs. Family GuyAuthor Spotlight
Written by
Tayyaba RehmanTayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
Co-written by
Fiza RafiqueFiza Rafique is a skilled content writer at AskDifference.com, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
