Ounces to Grams Converter
Convert ounces to grams and kilograms. This calculator is useful when following American or British recipes that use ounces as a weight unit.
What is an ounce?
An ounce (oz) is a weight unit in the imperial system. 1 ounce = 28.3495 grams. There are 16 ounces in a pound (lb), which weighs about 453.6 grams.
Common conversions
1 oz = about 28 g. 4 oz = about 113 g. 8 oz = about 227 g. 16 oz (1 lb) = about 454 g.
Fluid ounces vs. weight ounces
Note the difference between fluid ounces (volume, 1 fl oz = 29.6 ml) and weight ounces (weight, 1 oz = 28.35 g).