Gram to Ounce Converter
Convert grams to ounces (avoirdupois, troy, and fluid) and back, with a full reference conversion table.
Reviewed October 7, 2026 Runs in your browser — inputs are never stored
oz (avoirdupois)
3.5274 oz (avoirdupois)
Conversion factor: 28.349523125 g per oz (avoirdupois)
Grams to oz (avoirdupois)
| g | oz |
|---|---|
| 1 | 0.0353 |
| 10 | 0.353 |
| 28.35 | 1 |
| 100 | 3.527 |
| 250 | 8.818 |
| 500 | 17.637 |
| 1000 | 35.274 |
This tool provides general unit conversions for everyday and educational use. For regulated, legal, or scientific applications, verify conversion factors against the applicable official standard.
About the Gram to Ounce Converter
The gram to ounce converter supports the everyday avoirdupois ounce (28.35 g), the troy ounce used for gold and silver (31.10 g) and the US fluid ounce for liquids. Choosing the right ounce matters: a troy ounce is about 10% heavier than a kitchen ounce. The tool converts in both directions and includes a reference table.
How to use it
- 1Choose grams → ounces or ounces → grams.
- 2Enter the amount and select the type of ounce.
- 3Read the converted value.
- 4Copy, share or print the result with the buttons below it.
Worked example
250 g ÷ 28.3495 ≈ 8.82 oz (avoirdupois). One troy ounce of gold is 31.1035 g.
How it works
Three types of ounce
- Avoirdupois ounce (oz): 28.3495 g — the common everyday ounce for food and general use.
- Troy ounce (oz t): 31.1035 g — used exclusively for precious metals (gold, silver).
- US fluid ounce (fl oz): 29.5735 mL — a volume unit, not a mass unit.
Common use cases
- Converting recipe quantities
- Weighing precious metals in troy ounces
- Reading food and postage weights
Frequently asked questions
A:The troy system dates to medieval trade in Troyes, France. 1 troy ounce = 31.1 g vs 1 avoirdupois ounce = 28.35 g — about 10% heavier.
A:1 avoirdupois pound = 16 oz = 453.592 g.
Reviewed for accuracy · Last updated October 7, 2026
Conversion factors are based on internationally defined SI units and standard metric/imperial equivalence tables.
CalcWisee Editorial Team
Calculator development and formula review
CalcWisee is an independent site founded by Ayman. Every calculator is built from a published formula or official definition, tested against hand-worked examples before it goes live, and corrected promptly when a reader reports an issue to ayman@calcwisee.com.
Expertise: Financial mathematics, Health and fitness formulas, Applied mathematics, Unit conversion standards
References & sources
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