How to use it
- Enter the weight in grams.
- Read the result in ounces.
- Check pounds and troy ounces if you need them.
- Use the chart for common kitchen amounts.
The formula
ounces = grams ÷ 28.349523125
The avoirdupois ounce, used for food and everyday weights in the US, is exactly 1/16 of the international pound, which makes it exactly 28.349523125 g.
Example: 250 g ÷ 28.349523125 = 8.82 oz, a little over half a pound (0.55 lb).
Kitchen chart
| Grams | Ounces | Pounds |
|---|---|---|
| 28 g | 0.99 oz | 0.06 lb |
| 100 g | 3.53 oz | 0.22 lb |
| 250 g | 8.82 oz | 0.55 lb |
| 454 g | 16.01 oz | 1.00 lb |
| 500 g | 17.64 oz | 1.10 lb |
| 1,000 g | 35.27 oz | 2.20 lb |
A US 1 lb package is 453.6 g, so many European packs of 500 g are about 10% larger. Food labels often round 1 oz to 28 g.
Ounces or fluid ounces?
Ounces (oz) measure weight; fluid ounces (fl oz) measure volume. They only match for water and similar liquids: 1 US fl oz of water weighs about 1.04 oz. For flour, sugar or butter, a cup holds a different weight of each, so use the cups to grams converter, which knows ingredient densities.
Troy ounces for gold and silver
Precious metals are priced in troy ounces, which are heavier: 1 troy ounce = 31.1034768 g, about 10% more than a regular ounce. A 100 g gold bar is 3.22 troy ounces but 3.53 ordinary ounces. The converter shows both; for bullion, always use troy ounces.
Small amounts and baking
| Grams | Ounces |
|---|---|
| 5 g | 0.18 oz |
| 10 g | 0.35 oz |
| 15 g | 0.53 oz |
| 30 g | 1.06 oz |
| 50 g | 1.76 oz |
| 200 g | 7.05 oz |
| 300 g | 10.58 oz |
| 750 g | 26.46 oz |
Kitchen scales sold in the US usually switch between grams and ounces with one button, and many show ounces in tenths. If a European recipe calls for 200 g of sugar and your scale only shows ounces, weigh out 7.05 oz, or 7 oz if the recipe is forgiving. For small amounts like yeast or salt, grams are more precise, since 5 g is less than a fifth of an ounce.
Quick estimates
- Divide by 28, or by 30 for a rough figure: 250 g ÷ 30 ≈ 8.3 oz (exact: 8.82).
- 100 g is about 3.5 oz.
- A kilogram is about 35 oz, or 2.2 lb.
The value you type is saved in the page link; use Share to send the exact conversion.
To go the other way, use the ounces to grams converter.
Frequently asked questions
How do I convert grams to ounces?
Divide by 28.349523125. 250 g is 8.82 oz.
How many grams are in an ounce?
28.35 grams (exactly 28.349523125) in an avoirdupois ounce, and 31.10 grams in a troy ounce.
How many ounces is 100 grams?
3.53 ounces.
Are ounces and fluid ounces the same?
No. Ounces measure weight and fluid ounces measure volume; they only roughly match for water.
Sources
- NIST – Special Publication 811: Guide for the Use of the International System of Units
- NIST – Handbook 44, Appendix C: General tables of units of measurement
Last updated: November 14, 2026