How to convert ounces to grams
Formula: g = oz × 28.3495
Worked example: 8 oz → 8 × 28.3495 = 226.796 g
One ounce is 28.35 grams, so rounding to 28 g or 30 g is common in recipes. Package sizes convert the same way: a 16 oz bag holds 453.6 g, and an 8 oz steak weighs 226.8 g before cooking.
Ounces to grams conversion chart
| Ounces (oz) | Grams (g) |
|---|---|
| 1 oz | 28.3495 g |
| 2 oz | 56.699 g |
| 3 oz | 85.0486 g |
| 4 oz | 113.398 g |
| 5 oz | 141.748 g |
| 6 oz | 170.097 g |
| 7 oz | 198.447 g |
| 8 oz | 226.796 g |
| 9 oz | 255.146 g |
| 10 oz | 283.495 g |
| 12 oz | 340.194 g |
| 15 oz | 425.243 g |
| 20 oz | 566.99 g |
| 25 oz | 708.738 g |
| 30 oz | 850.486 g |
| 40 oz | 1,133.98 g |
| 50 oz | 1,417.48 g |
| 75 oz | 2,126.21 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 |
What is an ounce?
The avoirdupois ounce is one sixteenth of a pound, exactly 28.349523125 grams. Americans use it for food portions, packaged goods and baby weights. It is a weight, not to be confused with the fluid ounce used for volume, or the troy ounce used for gold.
What is a gram?
The gram is one thousandth of a kilogram, roughly the mass of a paper clip. It is the unit of kitchen scales and recipes outside the US, of nutrition labels (protein, fat and sugar per serving) and of postage for small parcels.