Quick Summary: There are 28.35 grams in 1 ounce (rounded to 28 grams for cooking). To convert any ounces to grams, multiply by 28.35. For example, 2 ounces equals 56.7 grams, and 10 ounces equals 283.5 grams.
Download the free printable cooking weight conversion chart below.
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Grams and ounces in cooking
A gram (g) is a metric unit of mass, while an avoirdupois ounce (oz), the standard US and British ounce, is used to weigh dry ingredients. One ounce is roughly the weight of a slice of bread.
There are also troy ounces, used to weigh precious metals such as gold and silver. In cooking, be careful not to confuse dry ounces, which measure the weight of non-liquid ingredients, with fluid ounces (fl oz), which measure volume.
How many grams in an oz
There are 28.35 grams in 1 ounce in the US system. The values below are for dry ounces, which measure mass, not fluid ounces.
1 oz to gram (1 oz to g)
How many grams in 1 ounce?
1 ounce = 28.349523125 grams, or
1 oz = 28.349523125 g
So, there are about 28 grams in one ounce.
This answer is the same regardless of what you measure (except for precious metals) since both units (ounces and grams) are units of weight.
It means there are 28 grams in 1 oz of brown sugar, all-purpose flour, or cacao powder.
How many grams in a troy ounce?
1 troy ounce = 31.1034768 grams, or
1 t oz = 31.1034768 g
Interestingly, 16 ounces make an imperial pound, while a troy pound comprises 12 troy ounces.
How to convert ounces to grams
To convert ounces to grams, multiply the number of ounces by 28.35 (the exact factor is 28.349523125). The formula is: grams = ounces x 28.349523125.
How many grams are in a ¼ ounce?
¼ oz × 28.35 = 7.09 g, so there are 7.09 g in a ¼ oz.
How many grams are 2 ounces?
2 oz × 28.35 = 56.70 g, so 2 oz makes 56.70 g.
But who has time for such calculations during cooking? So here is a trick.
To convert quantities in 4 oz., 6 oz., etc., to grams, multiply the oz value by 28.
This method works for measuring plain flour when making a sponge cake or chocolate chunk cookies.
To convert troy ounces to grams, multiply by 31.1034768. The formula is: grams = troy ounces x 31.1034768. For example:
How many grams are in 10 troy ounces?
10 troy oz x 31.10 = 311 g, so there are 311 grams in 10 troy ounces.
How many grams are in an ounce of gold? Or how much is a troy ounce of gold?
There are 31.1 grams of gold in a troy ounce.
Ounces to grams conversion
This table converts dry ounces (oz) to grams (g) and uses international avoirdupois ounces.
Find a free printable cooking weight conversion chart below, where the conversions are rounded up, so you don't have any math problems when making your next recipe.
| Ounces | Grams |
|---|---|
| 1/10 oz | 2.83 g |
| ⅛ oz | 3.54 g |
| ¼ oz | 7.09 g |
| ½ oz | 14.17 g |
| ¾ oz | 21.26 g |
| 1 oz | 28.35 g |
| 2 oz | 56.70 g |
| 3 oz | 85.05 g |
| 4 oz | 113.40 g |
| 5 oz | 141.75 g |
| 6 oz | 170.10 g |
| 7 oz | 198.45 g |
| 8 oz | 226.80 g |
| 9 oz | 255.15 g |
| 10 oz | 283.50 g |
| 20 oz | 566.99 g |
| 30 oz | 850.49 g |
| 40 oz | 1133.98 g |
| 50 oz | 1417.48 g |
| 60 oz | 1700.97 g |
| 70 oz | 1984.47 g |
| 80 oz | 2267.96 g |
| 90 oz | 2551.46 g |
| 100 oz | 2834.95 g |
How to measure dry weight?
The best way to measure food weight is with a digital scale, also known as a kitchen scale.
Place a container on a scale and press the tare button to set the weight to "zero." This step will deduct the container's weight to give an accurate measurement.
Add your ingredient and read the weight on display. To measure multiple ingredients in the same container, reset the scale to "zero" after each ingredient addition.
Weighing ingredients with a food scale is the only way to get the correct weight.
Look at decimals: 28 and 30 g both show 1 oz, and 57 and 60 g equal 2 oz.
If you are new to baking, it can feel like a chaotic, unpredictable scene. Are two to three grams really that important?
What difference does the use of a kitchen scale make in your kitchen?
Yes, five extra minutes to measure ingredients accurately makes a huge difference in the outcome of your bake. Baking is a science that requires precision.
So, investing in a kitchen scale is an excellent way to ensure that you always weigh your goods correctly.
When buying a digital scale, look for one with high-quality features such as an LCD display, 0.1-ounce (1-gram) accuracy, and a glass surface for easy cleaning.
Cooking weight conversion chart
Here is a free cooking weight conversion chart in PDF created to help convert ingredients between measuring spoons, cups, ounces, pounds, and grams.
Download this Cooking Weight Conversion Chart >>
More common conversions
This ounces converter helps you convert from the US standard ounces to metric measurements.
So whether you make classic chocolate chip cookies or something new like chocolate weed brownies, the conversions for dry goods, like flour or cannabis flower, won't be an issue.
But if you ever need to convert between grams, pounds, pints, quarts, gallons, tablespoons, teaspoons, or other units, try these baking conversion charts.
Also, enjoy other grams and ounces conversions:
- How Many Grams Is In A Teaspoon?
- How Many Grams Is In A Tablespoon?
- How Many Grams In A Cup
- How Many Ounces In A Cup
- How Many Ounces In A Pint
- How Many Ounces Is In A Quart?
- How Many Ounces In A Gallon
You will also love this simple tool, Cake Pan Converter, to calculate cake pan sizes.
Conclusion
You can easily cook and create desserts with simple conversion charts. I hope this handy guide makes it easy for you.
See also how many ounces in a gram to convert from grams to ounces.
And if you ever want to learn baking basics and level up your baking, sign up for a Baking Basics E-course.
FAQ
How many grams equal an ounce?
One ounce equals about 28.35 grams, usually rounded to 28 grams in cooking.
How many grams is 2 oz?
2 ounces equal 56.7 grams (2 x 28.35).
How many grams is 10 oz?
10 ounces equal 283.5 grams (10 x 28.35).
Does 30 grams equal 1 ounce?
No. One ounce is 28.35 grams, so 30 grams is slightly more than 1 ounce (about 1.06 ounces).
How many grams in a quarter ounce?
There are about 7 grams in a quarter ounce.
How many grams in a half ounce?
There are about 14 grams in a half-ounce.
How many grams in an eighth of an ounce?
There are about 3.5 grams in one-eighth of an ounce.
How many grams in an ounce of food?
There are about 28 grams in an ounce of most foods, such as butter, chocolate, sugar, almonds, or coffee, because the ounce measures weight regardless of the ingredient.
How many grams in an ounce of gold or silver?
Gold and silver are measured in troy ounces, so there are about 31.1 grams in a troy ounce.
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