Grams to ounces
Last updated
To convert grams to ounces, divide by 28.349523125. That gives standard (avoirdupois) ounces, which is what food, packaging, and body weight use. For gold, silver, platinum, and gemstones, divide by 31.1034768 instead to get troy ounces. Both figures are exact by definition, not rounded.
283.495
grams311.035
gramsΔ +27.540 g if troy instead 9.71%
Any amountFull precision availableStandard & troy together
Recent in this session
| Line | Standard | Troy |
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So 100 grams is 3.5274 standard ounces, or 3.2151 troy ounces. Every table below shows both, because the same mass gives two different ounce readings and which one you want depends on what you are weighing.
The amounts people look up most
Tap any card to load that amount into the converter above. Each also has its own row in the full table further down.
Grams to ounces conversion table
Every value computed from the exact factors. Standard and troy shown together so the 9.71% gap between them stays visible. For an amount not listed here, the converter above takes any value.
| Grams | Standard oz | Troy oz | Pounds |
|---|---|---|---|
| 1 g | 0.0353 | 0.0322 | 0.0022 |
| 5 g | 0.1764 | 0.1608 | 0.011 |
| 10 g | 0.3527 | 0.3215 | 0.022 |
| 20 g | 0.7055 | 0.643 | 0.0441 |
| 25 g | 0.8818 | 0.8038 | 0.0551 |
| 28 g | 0.9877 | 0.9002 | 0.0617 |
| 30 g | 1.0582 | 0.9645 | 0.0661 |
| 50 g | 1.7637 | 1.6075 | 0.1102 |
| 75 g | 2.6455 | 2.4113 | 0.1653 |
| 100 g | 3.5274 | 3.2151 | 0.2205 |
| 125 g | 4.4092 | 4.0188 | 0.2756 |
| 150 g | 5.2911 | 4.8226 | 0.3307 |
| 200 g | 7.0548 | 6.4301 | 0.4409 |
| 225 g | 7.9366 | 7.2339 | 0.496 |
| 250 g | 8.8185 | 8.0377 | 0.5512 |
| 300 g | 10.5822 | 9.6452 | 0.6614 |
| 400 g | 14.1096 | 12.8603 | 0.8818 |
| 450 g | 15.8733 | 14.4678 | 0.9921 |
| 500 g | 17.637 | 16.0754 | 1.1023 |
| 750 g | 26.4555 | 24.1131 | 1.6535 |
| 1,000 g | 35.274 | 32.1507 | 2.2046 |
The two ounces, briefly
Dividing by the wrong factor puts you out by about a tenth. The standard ounce is 28.349523125 g and covers everything you weigh in a kitchen or put in the post. The troy ounce is 31.1034768 g and covers precious metals and gemstones only.
A bullion listing that says "1 oz" means the troy one, even without the "t". A recipe that says "1 oz" never does. The full comparison covers how to tell, and the trap that a troy pound is lighter than a standard one.
Converting a recipe from grams
Recipes written in grams are the easy case: grams mean one thing everywhere. The trouble starts if you convert them into cups, because a cup is not one measurement. A US cup is 236.588 ml, a metric cup is 250 ml, and a Japanese cup is 200 ml.
The cooking page has ingredient weights worked out from density for all three, so a gram figure lands correctly whichever kitchen you are in.
Frequently asked
How many ounces is 100 grams?
100 grams is 3.5274 standard ounces. It is often rounded to 3.5 oz, which is close enough for cooking but not for anything precise. In troy ounces, used only for precious metals, 100 grams is 3.2151 ozt.
How do you convert grams to ounces?
Divide the gram figure by 28.349523125 for standard ounces, or by 31.1034768 for troy ounces. For a rough mental estimate, divide by 28 and take a little off.
Is 250 g the same as 8 oz?
Not quite. 250 grams is 8.8185 standard ounces, so it is closer to 8.8 oz than 8. Going the other way, 8 oz is 226.8 grams. The two are about 10% apart, which is enough to matter in baking.
How many ounces is 500 grams?
500 grams is 17.637 standard ounces, or 1.1023 pounds. In troy ounces it is 16.0754 ozt.
How many ounces is 50 grams?
50 grams is 1.7637 standard ounces, or about one and three quarter ounces. In troy ounces it is 1.6075 ozt.
Is 28 grams exactly one ounce?
Almost. 28 grams is 0.9877 of a standard ounce, so it is just under. A full ounce is 28.349523125 grams. The 28 g figure is a common rounding rather than a definition.