Grams to Ounces Converter
Convert grams to ounces instantly and back. Uses the exact 28.3495 g per ounce factor, with worked examples, a cooking-friendly chart and common weight conversions.
Updated 2026-06-14 · Free · No sign-up · Runs privately in your browser
Show the formula & steps
How the Grams to Ounces Converter Works
This tool converts grams into ounces and back, using the exact factor of 28.349523125 grams per ounce. Enter a value, choose the direction, and the answer updates live with the calculation shown.
The Formula
Ounces = grams ÷ 28.349523125
The ounce used here is the avoirdupois ounce for food and everyday weights. To convert ounces back to grams, multiply by 28.349523125 instead.
Worked Example
Convert 250 grams to ounces:
- 250 ÷ 28.349523125 = 8.82 ounces
Convert 5 ounces to grams:
- 5 × 28.349523125 = 141.75 grams
Cooking Reference Chart
| Grams | Ounces |
|---|---|
| 25 | 0.88 |
| 50 | 1.76 |
| 100 | 3.53 |
| 250 | 8.82 |
| 500 | 17.64 |
Why It Matters in the Kitchen
European recipes weigh ingredients in grams while many US recipes use ounces. Converting accurately keeps ratios correct — especially in baking, where a 10% error in flour or sugar can change the texture of the finished bake. For precious metals, switch to a troy-ounce conversion, since a troy ounce is heavier at 31.1035 g.
Frequently asked questions
How many ounces are in a gram?+
One gram equals about 0.035274 ounces. Because a gram is small, you usually convert larger amounts: 100 grams is roughly 3.53 ounces.
How do I convert grams to ounces?+
Divide the number of grams by 28.349523125. For example, 250 grams ÷ 28.349523125 = 8.82 ounces. To reverse it, multiply ounces by the same factor.
How many ounces is 100 grams?+
100 grams equals about 3.527 ounces. Divide 100 by 28.349523125 to get the precise figure of 3.5274 ounces.
How many ounces is 500 grams?+
500 grams equals about 17.64 ounces, or just over one pound. Divide 500 by 28.349523125 to confirm the figure.
Are these the standard ounces used in cooking?+
Yes. This converter uses the avoirdupois ounce (28.35 g) used for food and general weight, not the heavier troy ounce (31.10 g) used for precious metals.