Convert OZ to GRAMS, Free
Type any OZ value and see the GRAMS result instantly. No button press needed.
How to convert OZ to GRAMS
Ounces and grams are both units of weight that appear constantly in cooking, nutrition labeling, postal scales, and jewellery measurement. One avoirdupois ounce (the standard ounce for food and general weight) equals exactly 28.3495 grams. Converting between them comes up whenever you are following a recipe that mixes metric and imperial measures or comparing food quantities across different countries' labeling systems.
The calculation runs instantly in your browser using JavaScript. Type the ounce value and the gram equivalent appears immediately.
Enter the ounce value
Type the weight in ounces. Decimals are fine: 0.5 oz, 3.5 oz, 16 oz.
Read the gram result
The converter multiplies by 28.3495 and shows the result. 4 oz = 113.4 g; 8 oz = 226.8 g.
Copy the value
Highlight the gram figure and copy it for your recipe, nutrition tracker, or postal label.
Reverse if needed
Switch to grams-to-oz to go the other direction.
Frequently asked questions
How many grams is 1 ounce?
28.3495 grams (avoirdupois ounce). The troy ounce, used for precious metals, is 31.1035 grams.
How many grams is 8 oz?
8 x 28.3495 = 226.8 grams.
Is this the same as a fluid ounce?
No. Fluid ounces measure volume (liquid), not weight. 1 US fluid ounce = 29.5735 ml. This converter handles weight ounces only.
What is 100 grams in ounces?
100 / 28.3495 = 3.527 oz. Use the grams-to-oz converter for that direction.
What is the troy ounce?
The troy ounce (31.1035 g) is used for precious metals like gold and silver. When buying or selling gold, always confirm whether a quoted 'ounce' is avoirdupois or troy.