Convert ounces to grams in one step. Type a value, change the units if you need a different pair, and the answer updates as you type, with the reverse rate and a quick reference list.
Results are estimates for planning. Check the figures before you make a financial or health decision.
How to convert ounces to grams
Multiply the number of oz by 28.349523 to get g:
g = oz × 28.349523
To go the other way, divide by 28.349523 (or multiply by 0.035274). The converter stores each unit as a multiple of a base unit, so you can also pick any other pair of units from the same group.
Worked example
Using the default values in the converter above:
| Input | Value |
|---|---|
| Value | 8 |
| From | Ounces |
| To | Grams |
8 ounces equals 226.796185 grams
Ounces to Grams reference table
| Ounces | Grams |
|---|---|
| 1 oz | 28.349523 g |
| 2 oz | 56.699046 g |
| 5 oz | 141.747616 g |
| 10 oz | 283.495231 g |
| 20 oz | 566.990463 g |
| 50 oz | 1,417.476156 g |
| 100 oz | 2,834.952313 g |
| 200 oz | 5,669.904625 g |
| 500 oz | 14,174.76156 g |
Tips and common mistakes
The pound is defined as exactly 0.45359237 kg, and the avoirdupois ounce as one sixteenth of a pound (28.349523125 g). A stone is 14 pounds, which is 6.35029318 kg. These are the units used for body weight in the UK and for most food and shop weights.
Watch out for the troy ounce, used for gold and silver, which is about 31.1 g and is not the same as the everyday ounce. Also check whether a figure is in pounds or stones, because 11 st is 154 lb, not 11 lb.
For a rough mental conversion, a kilogram is about 2.2 lb, and 100 g is a little over 3.5 oz.
Frequently asked questions
How many grams are in 1 oz?
1 oz equals 28.349523 grams.
How do I convert oz to g by hand?
Multiply the oz figure by 28.349523. For example, 8 oz × 28.349523 = 226.796185 g.
How do I convert g back to oz?
Divide the g figure by 28.349523, or multiply it by 0.035274. For example, 226.796185 g is 8 oz.
Is this conversion exact?
The pound and ounce are defined exactly in kilograms, so the factor is exact. Any difference comes only from rounding.