About the Grams to Ounces Converter
Recipes, parcels and nutrition labels use grams in most countries and ounces in the United States and for some traditional measures in the UK. This converter changes grams to ounces, or ounces to grams, using the exact value of one avoirdupois ounce, 28.349523125 grams. Along with the main answer, it shows the weight in pounds and ounces and, since precious metals use a different unit, in troy ounces. A table of common amounts from 25 g to 500 g helps when you are following a recipe. Note that this converts weight; fluid ounces measure volume and are a different unit.
Updated October 2026
How to use the Grams to Ounces Converter
- 1Choose grams to ounces or ounces to grams.
- 2Enter the amount.
- 3Read the converted weight in the large result.
- 4Check pounds and ounces, and troy ounces.
- 5Use the table for common kitchen amounts.
Kitchen quick reference
- 25 g = 0.88 oz.
- 50 g = 1.76 oz.
- 100 g = 3.53 oz.
- 200 g = 7.05 oz.
- 250 g = 8.82 oz.
- 500 g = 17.64 oz (1 lb 1.6 oz).
Postage and parcels
Postal services quote weight steps in grams or ounces, and a letter that is just over 1 oz (28.35 g) may cost more. International parcels often need both units on the customs form. Convert carefully and round up, since a package that is slightly over a limit moves to the next price band.
Nutrition labels are a common reason to convert. A serving size of 28 g is almost exactly one ounce, which is why US labels often round to it. A 30 g portion of cheese is 1.06 oz, a 150 g chicken breast is 5.3 oz and a 330 g tin of beans is 11.6 oz. Weights printed in one system on the front of a pack and the other on the back are often rounded differently, so a small mismatch between them is normal.
In jewellery and coins, check which ounce is meant. Gold prices are quoted per troy ounce, which is 31.1035 grams, so a 10 gram gold chain is 0.32 troy ounces but 0.35 ordinary ounces. Mixing them up changes the value by about 10 percent. The troy ounce line in the results table lets you check this at a glance, and you can enter the weight in either unit to see the other.
Cooking tips
When a recipe gives ounces, a good scale in ounces is the easiest way to follow it. If you only have grams, converting each ingredient in advance and writing the numbers on the page saves mistakes during cooking. For baking, accuracy to the nearest gram matters, and small amounts of yeast or salt are best weighed to the nearest tenth of a gram.
Related tools
The KG to LBS Converter handles heavier weights, the Cooking Converter changes cups and spoons, the Recipe Scaler multiplies a whole recipe and the Unit Converter handles many other measurements.
Features
- Both directions
- Exact ounce definition
- Pounds and ounces
- Troy ounces for gold and silver
- Table of kitchen weights
- Free and private
Frequently asked questions
How many ounces are in a gram?
One gram is 0.035274 ounces. One ounce is 28.3495 grams. So 100 grams is 3.53 ounces.
How do I convert grams to ounces?
Divide the grams by 28.3495. For 250 grams that is 8.82 ounces. As a rough rule, divide by 28 or multiply by 0.035.
What is 100 grams in ounces?
3.527 ounces, a little under 3½ ounces. 500 grams is 17.64 ounces, or 1 lb 1.6 oz.
What is the difference between an ounce and a fluid ounce?
An ounce measures weight and a fluid ounce measures volume. Water weighs about one ounce per fluid ounce, but other liquids and foods do not. Use a cooking converter when a recipe mixes the two.
What is a troy ounce?
The unit used for gold, silver and platinum. One troy ounce is 31.1035 grams, about 10 percent heavier than the ordinary ounce. There are 12 troy ounces in a troy pound, not 16.
Should I weigh ingredients in grams?
Yes if you can. Weighing is more accurate than measuring by volume, particularly for flour and sugar, whose volume changes with packing. A cheap kitchen scale usually switches between grams and ounces.