Convert Grams to Ounces
100 grams is 3.53 oz. One gram is exactly 0.0352739619496 ounces.
100 grams is 3.5273962 ounces, because one gram is 0.035273962 ounces. To convert grams to ounces, multiply by 0.035273962; to go the other way, divide by 0.035273962 or multiply by 28.349523. The relation is exact but the figure is not: it is a rounding of a number that does not terminate, and it follows from NIST Handbook 44. One thousandth of a kilogram, and the unit nutrition labels use worldwide.
Factor checked against the defining standard · How we check
- Grams × 0.035273962
100 * 0.0352743.527 oz
100 grams in every weight unit
| Unit | Value | Exact factor |
|---|---|---|
| ounces | 3.527396195 oz | × 0.0352739619496 |
| pounds | 0.2204622622 lb | × 0.00220462262185 |
| stone | 0.01574730444 st | × 0.000157473044418 |
| US tons | 0.0001102311311 ton | × 0.00000110231131092 |
| micrograms | 100,000,000 mcg | × 1,000,000 |
| milligrams | 100,000 mg | × 1,000 |
| centigrams | 10,000 cg | × 100 |
| grams (as entered) | 100 g | — |
| kilograms | 0.1 kg | × 0.001 |
| slugs | 0.006852176586 slug | × 0.0000685217658568 |
| tonnes | 0.0001 t | × 0.000001 |
| carats | 500 ct | × 5 |
| troy ounces | 3.215074657 ozt | × 0.0321507465686 |
| grains | 1,543.235835 gr | × 15.4323583529 |
| long tons | 0.00009842065276 LT | × 0.000000984206527611 |
Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert grams to ounces? The converter and the working
- 1.Take the measurement in grams.
- 2.Multiply by 0.035273962 — that is how many ounces fit in one gram.
- 3.To go back the other way, divide by 0.035273962, or multiply by 28.349523.
Worked example: 25 grams to ounces
- Formula
- g × 0.035273962 = oz
- Arithmetic
- 25 × 0.035273962 = 0.88 oz
- Answer
- 25 g = 0.88 oz
The factor is rounded for display; the figure above is computed from the full value.
Grams to ounces conversion table
| Grams | Ounces |
|---|---|
| 1 g | 0.04 oz |
| 2 g | 0.07 oz |
| 3 g | 0.11 oz |
| 4 g | 0.14 oz |
| 5 g | 0.18 oz |
| 6 g | 0.21 oz |
| 7 g | 0.25 oz |
| 8 g | 0.28 oz |
| 9 g | 0.32 oz |
| 10 g | 0.35 oz |
| 12 g | 0.42 oz |
| 15 g | 0.53 oz |
| 20 g | 0.71 oz |
| 25 g | 0.88 oz |
| 50 g | 1.76 oz |
| 100 g | 3.53 oz |
| 200 g | 7.05 oz |
| 300 g | 10.58 oz |
| 500 g | 17.64 oz |
| 1000 g | 35.27 oz |
| 2000 g | 70.55 oz |
| 5000 g | 176.37 oz |
| 10000 g | 352.74 oz |
A troy ounce is not an ounce
The ordinary avoirdupois ounce is 28.349523125 grams and is what this page converts. Precious metals are weighed in troy ounces of 31.1034768 grams — ten per cent heavier — and a troy pound is twelve troy ounces rather than sixteen. A gold price "per ounce" always means the troy ounce.
NIST Handbook 44, Appendix C — general tables of units of measurement
What is a gram?
One thousandth of a kilogram, and the unit nutrition labels use worldwide.
What is an ounce?
One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
How many ounces are in a gram?
One gram is 0.035273962 ounces. Going the other way, one ounce is 28.349523 grams. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every weight unit here
The whole group — 15 units with their symbols and the size of each one in kilograms — is on the conversion index, along with every pair it makes. The table above already gives each of them relative to a gram.
Cite this page
- APA
- Rule Calculator. (2026). Convert Grams to ounces. Rule Calculator. https://rulecalculators.com/convert/gram-to-ounce
- MLA
- "Convert Grams to ounces." Rule Calculator, August 16, 2026, https://rulecalculators.com/convert/gram-to-ounce.
- Chicago
- Rule Calculator. "Convert Grams to ounces." Rule Calculator. Last reviewed August 16, 2026. https://rulecalculators.com/convert/gram-to-ounce.
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Questions people actually ask
- How many ounces are in a gram?
- 0.035273962. One sixteenth of a pound. Not to be confused with the fluid ounce, which measures volume.
- How do I convert ounces back to grams?
- Divide by 0.035273962, or multiply by 28.349523 — they are the same operation.
The values people look up
Each one is this page with the value filled in, and each answers in its own title.
Other weight conversions
Ounces to grams — the same conversion the other way.