Mass & Weight
Ounces to grams
One multiplication, no offset. The factor is exact, so the result is as precise as the input.
The Formula
g = oz x 28.349523125
One multiplication, no offset. The factor is exact, so the result is as precise as the input.
| Symbol | Meaning | Unit | Notes |
|---|---|---|---|
| oz | Mass in avoirdupois ounces | ounces | One sixteenth of an international pound. The ounce of food and body weight. |
| 28.349523125 | Grams per ounce | g per oz | Exact, from 0.45359237 kg divided by 16. |
| g | Mass in grams | grams | Divide by 1000 for kilograms, since the metric prefixes are decimal. |
What Each Symbol Means
ozounces
Mass in avoirdupois ounces
One sixteenth of an international pound. The ounce of food and body weight.
28.349523125g per oz
Grams per ounce
Exact, from 0.45359237 kg divided by 16.
ggrams
Mass in grams
Divide by 1000 for kilograms, since the metric prefixes are decimal.
See It Worked With Real Numbers
A formula on its own does not tell you which number goes where. The how to convert ounces to grams page applies this equation to a concrete case, shows every intermediate step, and names the mistakes that produce a wrong answer even when the algebra is right.
Where This Formula Appears
This equation is the working core of How To Convert Ounces To Grams, filed under Unit Conversion. Every number the guide produces comes from substituting into this one line.