How to convert ounces to grams
1 oz = 1/16 lb = 28.349523125 g (exact)
grams = ounces × 28.349523125
Shortcut: About 28 g per ounce; 30 g is a common cooking shorthand but runs about 6% high.
Oz to grams table
| Ounces | Grams |
|---|---|
| 0.25 oz | 7.0874 g |
| 0.5 oz | 14.1748 g |
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 3 oz | 85.0486 g |
| 4 oz | 113.3981 g |
| 5 oz | 141.7476 g |
| 6 oz | 170.0971 g |
| 8 oz | 226.7962 g |
| 10 oz | 283.4952 g |
| 12 oz | 340.1943 g |
| 14 oz | 396.8933 g |
| 16 oz | 453.5924 g |
| 20 oz | 566.9905 g |
| 24 oz | 680.3886 g |
| 32 oz | 907.1847 g |
Values are calculated with exact factors and rounded for the table; the converter above shows full precision.
Worked examples
1 oz to grams
1 × 28.34952313
28.3495 g
8 oz to grams
8 × 28.34952313
226.7962 g
16 oz to grams
16 × 28.34952313
453.5924 g
Questions
How many grams is 1 ounce?
Exactly 28.349523125 grams, about 28.35 g.
How many grams is 8 oz?
About 226.8 grams.
Are fluid ounces the same as ounces?
No. Fluid ounces measure volume and ounces measure weight. Use the volume converter for fluid ounces.
Related conversions
- Grams to ounces (the reverse)
- Kilograms to pounds
- Pounds to kilograms
- Weight & mass converter: every weight & mass unit, with the full drawing
The history: The pound and the kilogram: a history of weight.