Convert grams to ounces
Gram (g) to ounce (oz). One gram equals 0.035274 ounces.
Formula
Gram to ounce conversion table
| Grams | Ounces | Ounces | Grams |
|---|---|---|---|
| 1 g | 0.035274 oz | 1 oz | 28.3495 g |
| 2 g | 0.070548 oz | 2 oz | 56.699 g |
| 3 g | 0.105822 oz | 3 oz | 85.0486 g |
| 5 g | 0.17637 oz | 5 oz | 141.75 g |
| 10 g | 0.35274 oz | 10 oz | 283.5 g |
| 20 g | 0.705479 oz | 20 oz | 566.99 g |
| 50 g | 1.7637 oz | 50 oz | 1417.48 g |
| 100 g | 3.5274 oz | 100 oz | 2834.95 g |
| 500 g | 17.637 oz | 500 oz | 14174.76 g |
| 1000 g | 35.274 oz | 1000 oz | 28349.52 g |
Decimal grams to ounces conversion table
The exact decimal amounts people look up most often, worked out with the same factor the converter above uses. Every row is calculated, not rounded off a chart.
| Grams | Ounces |
|---|---|
| 1 g | 0.035274 oz |
| 5 g | 0.17637 oz |
| 10 g | 0.35274 oz |
| 20 g | 0.705479 oz |
| 25 g | 0.881849 oz |
| 30 g | 1.0582 oz |
| 40 g | 1.411 oz |
| 50 g | 1.7637 oz |
| 60 g | 2.1164 oz |
| 70 g | 2.4692 oz |
| 80 g | 2.8219 oz |
| 90 g | 3.1747 oz |
| 100 g | 3.5274 oz |
| 110 g | 3.8801 oz |
| 120 g | 4.2329 oz |
| 125 g | 4.4092 oz |
| 130 g | 4.5856 oz |
| 140 g | 4.9384 oz |
| 150 g | 5.2911 oz |
| 160 g | 5.6438 oz |
| 170 g | 5.9966 oz |
| 180 g | 6.3493 oz |
| 190 g | 6.7021 oz |
| 200 g | 7.0548 oz |
| 225 g | 7.9366 oz |
| 250 g | 8.8185 oz |
| 300 g | 10.5822 oz |
| 350 g | 12.3459 oz |
| 400 g | 14.1096 oz |
| 450 g | 15.8733 oz |
| 500 g | 17.637 oz |
| 550 g | 19.4007 oz |
| 600 g | 21.1644 oz |
| 650 g | 22.9281 oz |
| 700 g | 24.6918 oz |
| 750 g | 26.4555 oz |
| 800 g | 28.2192 oz |
| 850 g | 29.9829 oz |
| 900 g | 31.7466 oz |
| 950 g | 33.5103 oz |
| 1000 g | 35.274 oz |
Ounces back to grams
The same conversion in reverse, for when you have the answer and need the question.
| Ounces | Grams |
|---|---|
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 4 oz | 113.4 g |
| 8 oz | 226.8 g |
| 16 oz | 453.59 g |
| 32 oz | 907.18 g |
Where the gram to ounce factor comes from
- The avoirdupois ounce is one sixteenth of the international pound, and the pound is exactly 0.45359237 kg.
- So one ounce is 0.45359237 ÷ 16 = 0.028349523125 kg, which is 28.349523125 grams.
- Going from grams to ounces divides by that: 1 ÷ 28.349523125 = 0.0352739619 ounces per gram.
- ounces = grams × 0.0352739619. So 100 g is 3.5274 oz and 250 g is 8.8185 oz.
Sources
Common mistakes
Weight ounces, not fluid ounces
This page converts grams (mass) to weight ounces. A fluid ounce is a volume and does not belong here: 100 g of flour is 3.53 oz by weight but takes up far more than 3.53 fl oz of space. Use grams-to-ounces only for weight.
Precious metals use the heavier troy ounce
Gold and silver are priced per troy ounce, which is 31.103 g, not the 28.35 g avoirdupois ounce used for food and post. So 100 g of gold is 3.215 troy oz, not 3.53. Match the ounce to what you are weighing.
To convert grams to ounces, divide the number of grams by 28.3495. One gram equals 0.035274 ounces, and one ounce equals 28.3495 grams, so the relationship is fixed and exact. As a worked example, 10 g comes to 0.35274 oz. Enter your own figure in the converter above to get an instant answer, or use the swap button to flip the direction. This is a mass conversion, and like every tool on UnitGlide it runs locally in your browser with no account or upload required. The table further down shows a range of common gram values already worked out in ounces, plus the reverse ounce to gram direction, which is handy for quick reference or double-checking a result by hand.
Frequently asked questions
How many ounces is 100 grams?
100 g is 3.5274 ounces. Multiply grams by 0.035274: 100 × 0.035274 = 3.5274.
How many ounces is 250 grams?
250 g is 8.8185 ounces. The factor is constant, so 500 g is 17.637 oz and 1000 g (1 kg) is 35.274 oz.
Is 28 grams an ounce?
Roughly. An ounce is exactly 28.3495 g, so 28 g is a hair light. The kitchen shortcut of 28 g is about 1.2 percent under.
How many ounces are in a gram?
One gram equals 0.035274 ounces. The ratio is constant, so you can multiply any number of grams by 0.035274 to get ounces.
What is the formula to convert grams to ounces?
Use ounces = grams ÷ 28.3495. UnitGlide applies this exact formula for every value, so results stay accurate across the whole range.
How do I convert ounces back to grams?
Go the other way by using one ounce equals 28.3495 grams. You can also press the swap button in the converter above to flip the direction in one click.
Is this gram to ounce converter accurate?
Yes. It uses internationally defined SI conversion factors, as maintained by the BIPM, and all math runs in your browser so nothing is rounded away on a server. For everyday use the displayed precision is more than enough.