How Many Grams Are In An Ounce? oz to g [ Well Explained ]

Have you ever found yourself working with a recipe whose measurements are in grams you are asking yourself “how many grams are in an ounce?” You have to stop guessing as this article will show you the answer and also teach you how to practically convert ounces to grams and grams to ounces. 

So, if you are in dire need of this information or you think you might be needing it soon, then join me as we look at the details together. Each paragraph of this work has vital information for you. So, you can’t afford to skip this. 

There are many methods of measurement in the world currently, especially as it involves food and recipes. While some countries use cups, spoons, tablespoons, etc. Others take their measurements in grams and kilograms. Very few other countries including the US, Liberia, and Myanmar use the customary system of units which is the ounce. 

This situation could sometimes pose a threat when you want to make a recipe from other countries. Thus, you see people wanting to know how many grams are in an ounce to get accurate measurements of ingredients.

And since we do not encourage you to give up on preparing those delicious American recipes, we are going to teach you how to convert ounces to grams and vice versa. Before we move on, I want you to know that the conversion process is very easy. So do not freight. 

What Is An Ounce?


I will like to begin the discussion by making you understand the terms that make up our topic of discussion. The word OUNCE is derived from the roman word “Uncia”. An uncia is the one-twelfth of a roman copper bar. It was traditionally used as a tool to measure the length of an inch.

An ounce which is usually abbreviated as oz is a unit of measurement used in countries where the imperial system for measurement of weight and mass is used. An ounce is used to measure dry weight mostly.

There are other types of ounces such as tro ounces used for the measurement of precious metals like gold, silver, platinum, etc. There is also the fluid ounce which is used to measure volume. For the sake of this article however, we will stick to the traditional ounce which is used to measure dry ingredients like flour, salt, sugar, and so on. 

However, a modern-day ounce has its origin in Britain and it is usually one-sixteenth of a pound. The big question now is How many grams are in an ounce? Find out as you continue reading.

What Is A Gram?


Before we move on to see the answer to our question of discussion, let us also get the meaning of a gram. A gram which has its origin in France during the French revolution is a metric system used for measurement. It was said that one gram is the weight of one cubic centimeter of water. It is the metric unit of a mass and is equal to 1/1000 of a kilogram. That is, a kilo is = 1000 grams. 

These two units of measurement are important because we currently live in a world that is described as a global village and the inter-relationship between people and systems of other countries cannot be avoided. Many international recipes use grams to specify the measurements of ingredients hence the need to know how to convert them as shown in the next paragraph.

How Many Grams Are In An Ounce?


There are 28 grams in one ounce. Let that sink into your memory so that even if you find yourself in a situation where you are unable to automatically use the method of calculation that will be explained below, you will bear in mind that 28 grams make an ounce. 

Here is the mathematical representation of a dry ounce-to-gram measurement.

1 ounce =  28.34 grams


1 oz = 28.349523125g. 

So, irrespective of what you want to measure except precious metals like gold, this is the correct answer for the number of grams in an ounce. 

How To Convert Ounce To Grams.


As mentioned earlier, it is very easy to convert to either of the units of measurement. It only requires basic knowledge of mathematics and in a split second, you are done. To convert ounce (oz) to grams (g), simply multiply the number of ounces by the unit of one gram which is 28.3495 or simply 28. Where 28.349523125 is the factor for conversion. I will give you a few examples below. 

Bear in mind that our formula remains 

g = oz x 28.349523125  

Example: How Many Grams Are In 4 Ounces?

Given that one ounce is equal to 28.349523125,

Therefore the number of grams in 4 ounces is

4 oz x 28.349523125 = 113.3980925 or simply put 113.4 grams.

To find the number of grams in any quantity of ounce, multiply the number of ounces by the unit 28.349523125. 

Ounce.  Grams
½ ounce 14 grams
1 ounce 28 grams
2 ounces 57 grams
5 oz 141.75 g
10 oz 283.5 g
15 oz 425.24 g
20 oz 566.99 g
25 oz 708.74 g
30 oz 850.49 grams
32 ounces 970 grams
50 oz 1417.48 g
70 oz 1984.47 g
100 oz 2834.95 g

How To Convert Grams To Ounce.


Like the above, converting grams to ounces is also easy. There are 0.035274 ounces in one gram. So to get any number of ounces in any quantity of grams, simply multiply that number by the unit of one ounce. See the example below for a better understanding. 

Example: How Many Ounce Are In 4 Grams?

Given that 1 gram =  0.03527

Therefore, 4 grams will be 4x  0.035274 = 0.141096oz.

See the chart below for more.

Grams  Ounce.
1 gram 0.035274 oz
2 grams 0.070548 oz
5 grams 0.17637 oz
10 grams 0.35274 oz
20 grams 0.70548 oz
30 grams 1.05822 oz
40 grams 1.41096 oz
50 grams 1.7637 oz
60 grams 2.11644 oz
70 grams 2. 46918 oz
80 grams 2.82192 oz
90 grams 3.5272 oz
100 grams 3.5274 oz
200 grams 7.0548 oz
250 grams 8.8185 oz
500 grams 17.637 oz
1000 grams 35.274 oz

How Can I Measure Dry Weight?


Dry weight is better measured with a digital scale also known as Kitchen Scale. To use it, place your container on it and press the button to read zero. This is to remove the weight of the container. Put the materials to be measured on it and watch the measurement. 


So far we have shown you the answer to how many grams are in an ounce. We also went further to let you know how to convert grams to ounces and ounces to grams yourself. Also in this article, charts are showing you some converted values for easy reference. Feel free to refer to them anytime the need arises.