How many grams in an ounce of gold?

How many grams does an ounce of gold contain?

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There are 31.1034768 grams in an ounce of gold. This can be confusing for those of us who
are used to the standard ounce (or kitchen ounce) which weighs 28.35g. That is because
there are in fact two types of ounce - the ‘troy’ ounce and the ‘avoirdupois’ ounce.

The troy ounce is the one most commonly used in the world of precious metals and is the
default unit of weight when measuring gold, silver, and platinum. It is often used in reference
to the gold price which is usually quoted in pounds, dollars, or euros per troy ounce.

The troy ounce is an imperial unit of measurement whose use dates back hundreds of years
and since the 16th Century has been the official unit for precious metals. Many gold and silver
bullion coins contain or weigh one troy ounce of gold, including the Britannia, Canadian Maple
Leaf, and Krugerrand.

If you know the weight of your gold in grams and wish to find out how many troy ounces it weighs you need to multiply its weight by 0.03215.

What is a Troy Ounce? | Find out how much one ounce of gold is worth today