Conversion tool
Convert ounces to grams instantly
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Disclaimer: Use calculations at your own risk. For critical applications, verify results against your governing standards/specifications.
How it works
We use g = oz x 28.349523125.
Exact relationship: 1 oz = 28.349523125 g.
Example: 1 oz = 28.350 g.
Notes: Results are rounded in the default view.
Examples
- 1 oz = 28.350 g
- 8 oz = 226.796 g
- 16 oz = 453.592 g
FAQ
What physical quantity do ounces and grams express?
Ounces express smaller masses in customary systems and are often used for compact goods, packaging, and small-part weights. Grams express smaller metric masses and are common when kilogram-scale values would be too coarse.
What is the difference between ounces and grams?
Ounces and grams both express mass, but they belong to different unit conventions and are favored in different industrial and scientific settings.
What is the history of the ounce?
The ounce comes from older customary trade and weight systems and persists in retail, shipping, and product measurement contexts.
What is the history of the gram?
The gram was introduced as part of the metric system and fits naturally into decimal SI scaling.
Were the ounce and gram discovered by a specific person?
The ounce evolved historically from customary systems rather than from one discoverer. The gram came from metric standardization rather than a single discoverer.
Where are ounces and grams used in science and engineering?
Ounces appear in packaging, product weights, small parts, and consumer-facing specifications. Grams are common in lab work, food and consumer packaging, additive quantities, and fine material measurement.
Why do mass units matter in calculations?
Mass units affect purchasing, shipping, load planning, material balances, and physical calculations. Keeping the unit visible helps prevent mistakes when numbers move between systems.
Can I trust this for critical calculations?
Use this for convenience and verify against your governing standard, specification, or regulated requirement for critical work. The arithmetic is simple, but the process context still matters.
References
- Exact constant used: 1 oz = 28.349523125 g.
- Mass conversions are derived from fixed customary and SI mass relationships.