What Is an Ounces to Grams Converter?
An Ounces to Grams Converter changes a mass measured in ounces into the equivalent value in grams. It is a quick way to convert between the commonly used avoirdupois ounce and the metric gram.
This conversion is useful for recipes, food packaging, shipping, product specifications, education and many other situations where different weight units are used.
Ounces to Grams Formula
Grams = Ounces × 28.349523125
One international avoirdupois ounce is defined as exactly 28.349523125 grams. Therefore, multiply the number of ounces by 28.349523125 to get grams.
How to Convert Ounces to Grams
Enter Ounces
Enter the number of ounces you want to convert.
Multiply
Multiply the ounce value by 28.349523125.
Get Grams
The result is the equivalent mass in grams.
Ounces to Grams Conversion Example
For example, suppose you want to convert 5 ounces to grams.
Example: Convert 5 oz to g
Therefore, 5 ounces ≈ 141.7476 grams.
Ounces to Grams Conversion Table
The following table provides quick conversions for common ounce values.
| Ounces (oz) | Grams (g) |
|---|---|
| 0.25 oz | 7.0874 g |
| 0.5 oz | 14.1748 g |
| 1 oz | 28.3495 g |
| 2 oz | 56.6990 g |
| 3 oz | 85.0486 g |
| 4 oz | 113.3981 g |
| 5 oz | 141.7476 g |
| 6 oz | 170.0971 g |
| 8 oz | 226.7962 g |
| 10 oz | 283.4952 g |
| 12 oz | 340.1943 g |
| 16 oz | 453.5924 g |
| 20 oz | 566.9905 g |
| 32 oz | 907.1847 g |
How Many Grams Are in One Ounce?
One international avoirdupois ounce equals exactly 28.349523125 grams. For many everyday calculations, this is rounded to approximately 28.35 grams.
1 Ounce
One international avoirdupois ounce equals exactly 28.349523125 grams.
1 Gram
One gram is approximately equal to 0.0352739619 avoirdupois ounces.
How to Convert Grams Back to Ounces
To convert grams back to ounces, divide the number of grams by 28.349523125.
Ounces = Grams ÷ 28.349523125
For example, 100 grams is approximately 3.527396 ounces.
Ounces vs Grams
Ounce (oz)
The avoirdupois ounce is a unit of mass commonly used for relatively small weights in the United States and in some product and food measurements.
Gram (g)
The gram is a metric unit of mass equal to one-thousandth of a kilogram and is widely used around the world.
Common Ounces to Grams Conversions
| Ounces | Grams | Rounded |
|---|---|---|
| 1 oz | 28.349523125 g | 28.35 g |
| 2 oz | 56.69904625 g | 56.70 g |
| 4 oz | 113.3980925 g | 113.40 g |
| 8 oz | 226.796185 g | 226.80 g |
| 12 oz | 340.1942775 g | 340.19 g |
| 16 oz | 453.59237 g | 453.59 g |
Why Does 16 Ounces Equal 453.59237 Grams?
There are 16 avoirdupois ounces in one international pound. Since one pound equals exactly 0.45359237 kilograms, it also equals exactly 453.59237 grams.
This means:
16 ounces = 453.59237 grams
Where Is Ounces to Grams Conversion Useful?
- Cooking and baking ingredient measurements.
- Comparing food and product package weights.
- Shipping and parcel calculations.
- Converting product specifications.
- School and educational calculations.
- Crafting and hobby measurements.
- Converting small weights between measurement systems.
This converter uses ounces as a unit of mass. A fluid ounce is a unit of volume, so fluid ounces cannot be converted directly to grams without knowing the density of the substance.
Avoirdupois Ounce vs Troy Ounce
This calculator uses the standard international avoirdupois ounce, which equals exactly 28.349523125 grams.
A troy ounce is a different unit commonly associated with precious metals. One troy ounce is approximately 31.1034768 grams. Make sure you know which type of ounce your measurement uses.
Common Ounces to Grams Conversion Mistakes
- Dividing by 28.349523125 instead of multiplying when converting ounces to grams.
- Confusing weight ounces with fluid ounces.
- Using a troy ounce when an avoirdupois ounce is required.
- Rounding the conversion factor too early.
- Confusing ounces with pounds.
Ounces to Grams Converter FAQs
Multiply the number of avoirdupois ounces by 28.349523125 to convert ounces to grams.
One international avoirdupois ounce equals exactly 28.349523125 grams.
5 ounces equals 141.747615625 grams, or approximately 141.75 grams.
16 avoirdupois ounces equals exactly 453.59237 grams, which is also one pound.
No. A fluid ounce measures volume, while 28.349523125 grams is the mass equivalent of one avoirdupois weight ounce.
Divide the number of grams by 28.349523125 to convert grams back to avoirdupois ounces.