Ounces to Grams
An ounce is 1/16 of a pound, about 28.35 grams, used for food packaging and precious metals in the US. A gram is one thousandth of a kilogram, used for cooking ingredients and other small everyday objects. 1 oz equals ≈28.3495 g, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to mass, measured here against mass's base unit (kg) — every other mass unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
g = oz × ≈28.3495
oz = g × ≈0.035274
Worked example: 5 oz × ≈28.3495 = ≈141.748 g.
Conversion table
| Ounce (oz) | Gram (g) |
|---|---|
| 1 oz | ≈28.3495 g |
| 2 oz | ≈56.699 g |
| 3 oz | ≈85.0486 g |
| 5 oz | ≈141.748 g |
| 10 oz | ≈283.495 g |
| 20 oz | ≈566.99 g |
| 25 oz | ≈708.738 g |
| 50 oz | ≈1,417.48 g |
| 100 oz | ≈2,834.95 g |
| 250 oz | ≈7,087.38 g |
| 500 oz | ≈14,174.8 g |
| 1,000 oz | ≈28,349.5 g |
Frequently asked
- How many Grams in a ounce?
- 1 oz equals ≈28.3495 g.
- How do I convert Ounces to Grams?
- Multiply the value in oz by ≈28.3495 to get g. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — Ounce and Gram are both defined by a fixed conversion factor to mass's base unit (kg), so the result shown is exact to the precision displayed, not an approximation.