100 g to oz
- Grams (g)
- 100 g
- Ounces
- 3.527396195 oz
Checked against: Exact-fraction computation from the legal unit definitions
Grams to ounces converter
Convert grams to ounces (grams to ounces) with the exact factor, a conversion chart and worked steps.
By AdminDrafted with AI writing toolsUpdated Checked examples: 3
Ounces
oz
Ounces: 3.52739619496 oz
- Conversion
- 100 g = 3.527396195 oz
- 1 oz in grams
- 28.34952313g
100 g is about 3.527396195 oz. In the other direction, 1 oz ≈ 28.34952313 g.
Grams to ounces
Grams to ounces chart
| Grams | Ounces |
|---|---|
| 1 | 0.0353 |
| 5 | 0.1764 |
| 25 | 0.8818 |
| 50 | 1.7637 |
| 100 | 3.5274 |
| 125 | 4.4092 |
| 200 | 7.0548 |
| 250 | 8.8185 |
| 500 | 17.637 |
| 750 | 26.4555 |
| 1000 | 35.274 |
How it's calculated S
Conversion factor
Rounded here for display; the calculation uses 50 significant digits.
Multiply
About the grams to ounces converter
To convert grams to ounces, multiply by 0.0352739619; to convert back, multiply by 28.349523125. For example, 100 g is about 3.527396 oz. Displayed factors and results may be rounded.
Gram amounts commonly come from ingredient labels, kitchen scales and small parcels. When a shipping form or stock record expects a larger unit, preserve amounts below one whole unit as decimals. The conversion changes the label and number together; it does not change how much material you have.
gram: 1 g = 1/1,000 kg. The kilogram is the SI base unit of mass.
Both units are defined exactly. Calculations use 50 significant digits and round only for display.
How to convert grams to ounces
Divide grams by 28.349523125, the exact grams in an ounce, or multiply by about 0.035274. So 100 g ≈ 3.527 oz and 250 g ≈ 8.818 oz. This is the avoirdupois ounce used for net weights and kitchen scales, not the troy or fluid ounce.
Where 28.349523125 comes from
The avoirdupois pound is exactly 453.59237 g, and an ounce is a sixteenth of it: 453.59237 ÷ 16 = 28.349523125 g. The pound and ounce relationships are listed in the Government of Gibraltar's measurement tables, Schedule 1, Part V.
The reciprocal, 0.0352739619…, is a repeating decimal, so dividing by 28.349523125 is the exact route and any multiplier is rounded.
Grams to ounces chart
| Grams | Ounces, rounded |
|---|---|
| 1 | 0.035274 |
| 50 | 1.763698 |
| 100 | 3.527396 |
| 250 | 8.818490 |
| 500 | 17.636981 |
| 1000 | 35.273962 |
Ounces are rounded to six decimal places.
Grams to pounds and ounces
There are 16 ounces in a pound, so take whole pounds out of the ounce total:
- Divide by 28.349523125: 750 g ≈ 26.455 oz.
- Subtract 16 oz for each whole pound: 26.455 − 16 = 10.455.
- The answer is 1 lb 10.46 oz.
The same way, 500 g is 1 lb 1.64 oz and 1 kg is 2 lb 3.27 oz. A pound is 453.59 g, so a 454 g pack is a pound with 0.014 oz to spare.
Quick estimates
- Divide by 28. 100 g gives 3.57 oz, about 1.2% high.
- Multiply by 0.035. 100 g gives 3.5 oz, about 0.8% low, and 1 kg gives 35 oz instead of 35.27 oz.
- Divide by 28.35. On a full kilogram the answer is off by only 0.0006 oz.
Troy ounces and fluid ounces
The NIST conversion tables list the avoirdupois, troy and fluid ounces as separate units:
- Avoirdupois ounce (oz): 28.349523125 g, the everyday ounce for food and parcels.
- Troy ounce: 31.1034768 g, about 9.7% heavier, used for gold and silver. 100 g is 3.215 troy oz.
- US fluid ounce (fl oz): 29.5735295625 mL, a volume rather than a mass.
Turning grams into fluid ounces needs the ingredient's density; the cooking converter does that for common baking ingredients. The weight converter includes the troy ounce.
Weighing in a container
Subtract the container before converting. A 250 g reading in a 30 g bowl is 220 g of food, or 7.76 oz. Typing 250-30 does the subtraction and the conversion in one step.
Related converters
For the opposite direction, use ounces to grams. For larger amounts, grams to pounds gives the answer in decimal pounds.
Worked examples
50 g to oz
- Grams (g)
- 50 g
- Ounces
- 1.7636980975 oz
Checked against: Exact-fraction computation from the legal unit definitions
750 g to oz
- Grams (g)
- 750 g
- Ounces
- 26.4554714622 oz
Checked against: Exact-fraction computation from the legal unit definitions
Questions
How many ounces are in one gram?
1 g is about 0.0352739619 oz. gram: 1 g = 1/1,000 kg. The kilogram is the SI base unit of mass.
How do I convert grams to ounces?
Multiply by 0.0352739619: 100 g × 0.0352739619 ≈ 3.527396 oz. To convert back, divide by the same factor. The factor shown may be rounded.
How can I estimate grams in ounces without a calculator?
Multiply by 0.035. This is 0.8% below the exact factor (about 0.0352739619), so 100 g comes out as 3.5 oz instead of 3.5274 oz.
About this calculator
Sources
Checked against references
This calculator includes 3 worked examples with independently sourced answers. They run in the test suite, and you can run them here too.