Convert ounces to grams (or grams to ounces) instantly with our free weight converter. Essential for cooking, baking, nutrition tracking, shipping, and understanding metric vs. imperial weight measurements.
Ounces to Grams Converter
Ounces to Grams Formula
1 avoirdupois ounce = 28.3495 grams (used for food, everyday items). 1 troy ounce = 31.1035 grams (used for precious metals like gold and silver). To convert oz to grams, multiply by the appropriate factor.
Common Oz to Grams Conversions
- 1 oz = 28.35 g
- 2 oz = 56.70 g
- 4 oz (¼ lb) = 113.40 g
- 8 oz (½ lb) = 226.80 g
- 16 oz (1 lb) = 453.59 g
- 100 g = 3.527 oz
Frequently Asked Questions
How many grams is 1 ounce?
1 standard (avoirdupois) ounce = 28.3495 grams. This is the ounce used for food and everyday measurements. For a quick estimate, use 28 grams per ounce.
What is the difference between a regular ounce and a troy ounce?
A standard avoirdupois ounce = 28.35 grams (used for everyday items). A troy ounce = 31.10 grams (used for precious metals). When buying gold, silver, or gemstones, prices are always quoted in troy ounces.
How many ounces is 100 grams?
100 grams = 3.527 ounces. In cooking, 100g portions are common for nutrition labeling.
How many grams is 8 ounces?
8 ounces = 226.796 grams (approximately 227 g). This is also known as half a pound.
Is a fluid ounce the same as a weight ounce?
No. A fluid ounce (fl oz) measures volume (about 29.57 mL), while a weight ounce measures mass (28.35 g). They're different units — water happens to weigh approximately 1 oz per fluid oz, but this doesn't hold for other liquids.