ounce is equal to 28.349 523 grams. In
1958 the US and countries of the Commonwealth (Canada, Australia and
New Zealand) defined the mass of the international avoirdupois ounce
is defined to be equal to 28.349 523 grams. There are 16 avoirdupois
ounces in an avoirdupois pound. One ounce is equal to 437.5 grains.
The ounce is commonly used as a unit of mass in the United
States, Canada and sometimes in Australia and New Zealand.
Online Calculator converts Ounces
to grams (oz to g) and backwards grams to ounces.