Ounces to grams
grams = ounces × 28.349523
Reverse: grams to ounces
How to convert ounces to grams
One ounce is 28.349523 grams, so multiply the number of ounces by 28.349523. For example, 20 ounces is 20 × 28.349523 = 566.990463 grams. To go back, divide by the same number, or multiply by 0.03527396.
Quick estimate
Multiplying by about 30 gets within 5.8% of the exact answer, which is enough to check that a result makes sense.
Where it comes up
Mass conversions come up in cooking and baking, shipping and luggage limits, body weight, medicine doses and buying food by weight.
| ounces | grams |
|---|---|
| 1 oz | 28.349523 g |
| 2 oz | 56.699046 g |
| 3 oz | 85.048569 g |
| 4 oz | 113.398093 g |
| 5 oz | 141.747616 g |
| 6 oz | 170.097139 g |
| 7 oz | 198.446662 g |
| 8 oz | 226.796185 g |
| 9 oz | 255.145708 g |
| 10 oz | 283.495231 g |
| 11 oz | 311.844754 g |
| 12 oz | 340.194277 g |
| 13 oz | 368.543801 g |
| 14 oz | 396.893324 g |
| 15 oz | 425.242847 g |
| 16 oz | 453.59237 g |
| 17 oz | 481.941893 g |
| 18 oz | 510.291416 g |
| 19 oz | 538.640939 g |
| 20 oz | 566.990463 g |
| 25 oz | 708.738078 g |
| 30 oz | 850.485694 g |
| 40 oz | 1,133.98 g |
| 50 oz | 1,417.48 g |
| 60 oz | 1,700.97 g |
| 70 oz | 1,984.47 g |
| 75 oz | 2,126.21 g |
| 80 oz | 2,267.96 g |
| 90 oz | 2,551.46 g |
| 100 oz | 2,834.95 g |
| 120 oz | 3,401.94 g |
| 150 oz | 4,252.43 g |
| 200 oz | 5,669.9 g |
| 250 oz | 7,087.38 g |
| 300 oz | 8,504.86 g |
| 400 oz | 11,339.81 g |
| 500 oz | 14,174.76 g |
| 750 oz | 21,262.14 g |
| 1,000 oz | 28,349.52 g |
| 1,500 oz | 42,524.28 g |
| 2,000 oz | 56,699.05 g |
| 5,000 oz | 141,747.62 g |
| 10,000 oz | 283,495.23 g |
Questions
How many grams are in a ounce?
28.349523 grams.
How do I convert ounces to grams in a spreadsheet?
Put the value in A1 and type =A1*28.349523, then fill the formula down the column.
Are the values in the table exact?
They are calculated from the exact definitions of the units and rounded only for display. Open any row for the full working.