Ounces to Grams (oz to g)
1 ounce = 28.34952313 grams
How to convert ounces to grams
g = oz × 28.34952313
Example: 5 × 28.34952313 = 141.7476, so 5 ounces = 141.7476 grams.
Ounces to grams helps with American recipes, coffee dosing, postage and portion sizes listed in ounces.
This page converts weight ounces (avoirdupois). If a US recipe lists liquids in "oz", it usually means fluid ounces — use the fluid ounce to milliliter converter for those.
Ounces to Grams conversion table
| Ounces (oz) | Grams (g) |
|---|---|
| 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 |
| 16 oz | 453.5924 g |
| 20 oz | 566.9905 g |
| 24 oz | 680.3886 g |
| 32 oz | 907.1847 g |
| 48 oz | 1,360.7771 g |
| 64 oz | 1,814.3695 g |
| 100 oz | 2,834.9523 g |
What is a ounce?
The avoirdupois ounce is 1/16 of a pound, exactly 28.349523125 grams. It is used for food portions and packaging in the US. Do not confuse it with the troy ounce (31.1 g) used for gold and silver, or with the fluid ounce, which measures volume.
What is a gram?
A gram is one thousandth of a kilogram. Recipes, nutrition labels, postage and jewellery are commonly weighed in grams.
Frequently asked questions
How many grams are in one ounce?
One ounce equals 28.34952313 grams.
How do I convert ounces to grams?
Use the formula g = oz × 28.34952313. 5 × 28.34952313 = 141.7476, so 5 ounces = 141.7476 grams.
What is 100 oz in g?
100 oz = 2,834.9523 g.
How do I convert grams back to ounces?
Use the inverse formula oz = g ÷ 28.34952313, or open the Grams to Ounces converter.
More weight and mass conversions
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