Everything you need to know about measuring grams, from terms and origin to how many grams are in an ounce.
There are 28.346 grams in an ounce. This is the same regardless of what you’re measuring, because both ounces and grams are methods of measuring weight. So whether the question is “how many grams are in an ounce of silver”, “gold”, or even “protein”, the answer is always 28 grams!
What Is An Ounce?
The term ounce comes from the Roman term “uncia.” An uncia was 1/12th of a roman copper bar that was used as a tool to measure the length of an inch and the weight of an ounce. Modern ounce weight and volume measurements, however, come from Britain. A fluid ounce is 1/16th of a pint. A dry ounce weighs 1/16 of a pound, or 28.346 grams.
The only nations still using ounces are the United States, Liberia, and Mayanmar.
What is a troy ounce?
The “troy ounce” originated in the middle ages, and is still used today to measure precious metals. A troy ounce is heavier than a standard ounce, and 1 troy ounce is equal to 1.097 standard ounces. There are 31.103 grams in 1 troy ounce.
What Is A Gram?
The gram was introduced in France following the French Revolution. The word gramme was adopted by the French in a 1795 decree revising the metric system and defining the gram as the weight of one cubic centimeter of water. The French went all in on the metric system then.
Quick Conversions
These conversions are important because recipes developed outside the United States call for grams vs ounces, and in baking precise ingredient quantities can be important. Here are some commonly found recipe quantities converted to ounces! (related: grams to pounds)
Grams to Ounces
| Grams | Ounces |
|---|---|
| 15 g | 0.53 oz |
| 30 g | 1.06 oz |
| 60 g | 2.12 oz |
| 100 g | 3.53 oz |
| 150 g | 5.29 oz |
| 200 g | 7.05 oz |
| 300 g | 10.58 oz |
| 400 g | 14.11 oz |
| 500 g | 17.64 oz |
| 1000 g | 35.27 oz |
Ounces to Grams
| Ounces | Grams |
|---|---|
| 1 oz | 28 g |
| 2 oz | 57 g |
| 3 oz | 85 g |
| 4 oz | 113 g |
| 5 oz | 142 g |
| 6 oz | 170 g |
| 7 oz | 198 g |
| 8 oz | 227 g |
| 9 oz | 255 g |
| 10 oz | 283 g |
| 11 oz | 312 g |
| 12 oz | 340 g |
| 13 oz | 369 g |
| 14 oz | 397 g |
| 15 oz | 425 g |
| 16 oz | 454 g |
Liliane Légère says
i need .25oz of yeast for a pizza bread recipe, how much would that be grams
Sarah Bond says
That’d be 7 grams! 🙂
Rich says
I just made this for the first time. It is absolutely worth it. I only wish there was an easier way to break down cal, carb’s, fat, etc. I made a half batch and it was terribly difficult. I will say the flavors and versatility with this burger is limitless and very tasty!! An easy 9/10.
Dave says
Isn’t a Troy ounce 32grams?
Sarah Bond says
Correct, the troy ounce is heavier than the standard ounce, and there are 31.103 grams in 1 troy ounce.
Hunter says
Hi, I am currently studying the history of organic chemistry and how many ways it has changed our every day lives for the better. I have found a few sources stating that one ounce is exactly 28.349.52.
Just trying to help. 🙂
R baker says
Gold, silver, and other precious metals are measured in Troy ounces! 31.1 grams, not 28 grams!