Grams to Ounces Converter
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Divide grams by 28.3495 to get ounces: 100 g is 3.53 oz, 250 g is 8.82 oz and 1,000 g is 35.27 oz. Gold and silver use troy ounces (31.1035 g), so 100 g is 3.215 troy ounces.
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Your result
100 grams equals 3.5274 ounces (weight). In kitchen terms that is about 3 ½ oz.
In pounds and ounces: 0 lb 3.5274 oz (0.220462 lb in all).
Conversion factor
- 1 gram = 0.03527396195 ounces (weight)
- 1 ounce (weight) = 28.34952313 grams
- ounce (weight) = avoirdupois ounce, 28.3495 g
Show the steps
- Amount: 100 grams.
- To grams: 100 × 1 g = 100 g.
- To ounces (weight): 100 ÷ 28.34952313 g = 3.527396195.
This page uses the avoirdupois ounce (28.3495 g) unless you choose troy. Nutrition labels round one ounce to 28 g.
Quick lookup chart: grams to ounces (weight)
Every row is calculated live from the same factor shown above.
| grams | ounces (weight) |
|---|---|
| 1 | 0.035274 ozKitchen: ⅛ oz |
| 5 | 0.17637 ozKitchen: ⅛ oz |
| 10 | 0.35274 ozKitchen: ⅜ oz |
| 15 | 0.52911 ozKitchen: ½ oz |
| 25 | 0.88185 ozKitchen: ⅞ oz |
| 28 | 0.98767 ozKitchen: 1 oz |
| 30 | 1.0582 ozKitchen: 1 oz |
| 50 | 1.7637 ozKitchen: 1 ¾ oz |
| 75 | 2.6455 ozKitchen: 2 ⅝ oz |
| 100 | 3.5274 ozKitchen: 3 ½ oz |
| 125 | 4.4092 ozKitchen: 4 ⅜ oz |
| 150 | 5.2911 ozKitchen: 5 ¼ oz |
| 200 | 7.0548 ozKitchen: 7 oz |
| 250 | 8.8185 ozKitchen: 8 ⅞ oz |
| 300 | 10.582 ozKitchen: 10 ⅝ oz |
| 454 | 16.014 ozKitchen: 16 oz |
| 500 | 17.637 ozKitchen: 17 ⅝ oz |
| 1000 | 35.274 ozKitchen: 35 ¼ oz |
Common recipe fractions of a pound in ounces and grams
Handy for butcher, deli and produce amounts written as fractions of a pound.
| Recipe amount (pound) | ounces (weight) | grams |
|---|---|---|
| ⅛ | 2 ozKitchen: 2 oz | 56.699 gKitchen: 57 g |
| ¼ | 4 ozKitchen: 4 oz | 113.4 gKitchen: 113 g |
| ⅓ | 5.3333 ozKitchen: 5 ⅜ oz | 151.2 gKitchen: 151 g |
| ½ | 8 ozKitchen: 8 oz | 226.8 gKitchen: 227 g |
| ⅔ | 10.667 ozKitchen: 10 ⅝ oz | 302.39 gKitchen: 302 g |
| ¾ | 12 ozKitchen: 12 oz | 340.19 gKitchen: 340 g |
| 1 | 16 ozKitchen: 16 oz | 453.59 gKitchen: 454 g |
Three kinds of ounce
Ounce can mean three different things. Pick the one that matches what you are measuring.
| Ounce | Grams in one | 100 g is | Used for |
|---|---|---|---|
| Avoirdupois ounce (oz) | 28.349523125 g | 3.5274 oz | Food, mail, everyday weight |
| Troy ounce (oz t) | 31.1034768 g | 3.21507 oz t | Gold, silver, platinum |
| US fluid ounce (fl oz) | depends on the ingredient | pick an ingredient above | Volume of liquids |
Grams to ounces: the formula
One ounce is exactly 28.349523125 grams, so ounces equal grams divided by 28.3495. To go the other way multiply ounces by 28.3495. That figure comes from the international pound of 0.45359237 kg divided by 16.
Standard ounce, troy ounce or fluid ounce?
- The standard (avoirdupois) ounce weighs 28.35 g. It is the one used for food, postage and body weight.
- The troy ounce weighs 31.1035 g, about 9.7 percent more. It is used for gold, silver, platinum and palladium. Choose "troy ounce" in the To box for those.
- The fluid ounce measures volume, not weight. The page converts grams to fluid ounces only when you name an ingredient, because a gram of honey takes up less space than a gram of flour.
How to use it
- Enter the grams. You can also start from kilograms, pounds, ounces or troy ounces.
- Choose the ounce you want in the To box.
- Optional: pick an ingredient to see the volume as cups, tablespoons or fluid ounces.
- Use the chart for quick lookups and the scaling box to multiply a whole recipe.
Why kitchen scales and labels disagree a little
US nutrition labels treat 1 ounce as 28 g. The exact figure is 28.35 g. Over 100 g the label rounding would be off by about 1.2 percent, which is why this page gives both the exact value and a kitchen value rounded to an eighth of an ounce.
Practice questions
Quiz complete
Sources
Quick check: test yourself
Question 1. About how many ounces are in 100 grams?
Question 2. Which ounce is used for gold and silver?
Question 3. How many grams are in 1 ounce?
Common questions
How many grams are in an ounce?
One avoirdupois ounce is 28.349523125 grams. US food labels round it to 28 g. A troy ounce is 31.1034768 g.
How many ounces are in 100 grams?
100 grams is 3.527 ounces, or about 3½ ounces in the kitchen.
How many ounces are in 250 grams, 500 grams and 1 kilogram?
250 g is 8.82 oz. 500 g is 17.64 oz, which is 1 lb 1.64 oz. 1 kg is 35.27 oz, or 2 lb 3.27 oz.
How many troy ounces are in a gram of gold?
One gram is 0.0321507 troy ounces. 10 grams is 0.3215 troy ounces, and 31.1035 grams is exactly 1 troy ounce.
Is a troy ounce heavier than a regular ounce?
Yes. A troy ounce is 31.1035 g and a regular ounce is 28.3495 g, so the troy ounce is about 9.7 percent heavier.
Why is a gram of flour not the same volume as a gram of sugar?
Each ingredient has its own density. 100 g of all-purpose flour fills about 0.83 cup, while 100 g of granulated sugar fills about half a cup.
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