Ounce in Math – Definition, Conversion, Examples, Facts, FAQs

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What Is an Ounce in Math?

Ounce (abbreviation: oz) is a unit of weight in the US customary system and imperial system of measurement that equals one-sixteenth of a pound.

In simple words, there are 16 ounces in one pound. Ounce is the smallest unit for measuring weight in the customary system. It is used to measure the weight of small items such as a pencil, a dime, etc.

The units ounce (oz) and fluid ounce (oz) use the same abbreviation. ‘Fluid ounce’ is the unit of volume measurement and ‘ounce’ is the unit of weight. The oz unit may refer to the unit of weight or the unit of volume, which are different, unrelated and not to be confused with each other.

Ounce Definition

Ounce (abbreviated as oz) is the smallest unit of weight in the US customary system of measurement.

• 16 ounces $= 1$ pound
• 32000 ounces $= 1$ ton
• 1 ounce $= 28.35$ grams
• 1 ounce $= 0.0283495$ kg

Ounces to Pounds to Tons

A pound (symbol: lb) is a unit of mass in the US customary system of measurement that equals 16 ounces.

Ton (t) is a unit of weight in the US customary system of measurement that equals 2000 pounds.

How to Convert Ounces to Pounds

1 pound $= 16$ ounces

1 lb$= 16$ oz

1 oz$= \frac{1}{16}$ lb

How to Convert Ounces to Tons

1 pound $= 16$ ounces

Thus, 2000 pounds $= 16 \times 2000 = 32000$ ounces

but 2000 pounds $= 1$ ton

Thus, 1 ton $= 32000$ ounces

Ounce and Gram

1 ounce is approximately equal to 28.3495 grams.

1 oz $= 28.35$ g

1 gram is about $\frac{1}{28.3495}$ ounce.

1 g $= \frac{1}{28.3495}$ oz $= 0.03527$ oz

How to Convert Ounces to Grams

To convert ounces to grams, multiply the weight in ounces by 28.35.

Example: Convert 160 ounces to grams.

Multiplying by 28.35, we get

160 ounces $= 160 \times 28.35$ grams $= 4536$ grams

How to Convert Grams to Ounces

To convert grams to ounces, multiply the weight in ounces by 0.03527.

Example: Convert 4536 grams to ounces.

Multiplying by 0.3527, we get

4536 grams $= 4536 \times 0.03527$ oz $= 160$ ounces

How Big Is an Ounce?

You might come across many items that weigh about an ounce at home. A slice of bread weighs about one ounce. Another such example of an ounce measurement is the weight of a pencil. A pencil weighs approximately one ounce.

• The units ounce (oz) and fluid ounce (oz) use the same abbreviation but they are different, unrelated and not to be confused with each other.
• An ounce is equal to about 28.34952 grams. A milligram is smaller than an ounce. There are approximately 28,350 milligrams in an ounce.
• An ounce is the smallest customary unit of weight.

Conclusion

In this article, we learned about the unit ounce, conversion formulas, and examples of ounce measurement (oz measurement). Let’s solve a few examples and practice problems based on these concepts for better understanding.

Solved Examples on Ounce

1. How many ounces are there in 12 pounds?

Solution:

We know that 1 lb $= 16$ oz

12 lb$= 16 \times 12$ oz

12 lb $= 192$ oz

2. How many ounces are there in 10 tons?

Solution:

We know that 1 t $= 32,000$ oz

10 t $=10 \times 32,000$ oz

10 t $= 3,200$ oz

3. Convert 1320 ounces to pounds.

Solution:

1 oz $= \frac{1}{16}$ lb

1320 oz $= \frac{1}{16} \times 1320$ lb

1320 oz $= 82.5$ lb

4. Convert 198 oz to g.

Solution:

1 oz $= 28.35$ g

198 oz $= 198 \times 28.35$ g

198 oz $= 5613.3$ g

5. Convert 2670 g to oz.

Solution:

1 g $= 0.035274$ oz

2670 g $= 2760 \times 0.035274$ oz

2670 g $= 94.18$ oz

Practice Problems on Ounce

1

The appropriate unit to measure the weight of a pack of 20 paper-clips is

Pound
Ounce
Ton
None of these
CorrectIncorrect
Correct answer is: Ounce
Ounce is used to measure weight of lighter, small objects. So, an ounce is used to measure the weight of a pack of 20 paper-clips.
2

Convert 25 pounds to ounces.

16 oz
150 oz
400 oz
420 oz
CorrectIncorrect
Correct answer is: 400 oz
1 lb $=16$ oz
25 lb$= 25\times16$ oz $=400$ oz
3

Convert 64,000 ounces to tons.

32 tons
$\frac{1}{2}$
1 ton
2 ton
CorrectIncorrect
Correct answer is: 2 ton
1 oz$= \frac{1}{32,000}$ ton
64,000 oz $= \frac{64,000}{32,000}$ ton $= 2$ tons
4

How many ounces make a pound?

16
15
18
14
CorrectIncorrect
Correct answer is: 16
16 oz $=1$ lb

Frequently Asked Questions on Ounce

An ounce is a measure of weight that is primarily used in the United States, and it is used to measure food portions, packaged food, the density of the fabric, etc.

1 ounce approximately contains 28 grams.

Fluid ounce is the unit used to measure the volume of the liquids, while ounce is the unit of weight.

1 oz $= 0.0283495$ kg

1 g $= 0.001$ kg

Thus, 1 ounce is heavier than 1 gram.