Even countries that use the metric system still produce bars and coins in the 1 troy oz size since it is so popular.
Gold bar dimensions metric.
In other words often the largest gold bar weights are not exact and therefore cannot be traded without adequate record keeping weighing and assaying.
Here we examine changing gold bar weight standards.
Gram gold bar sizes.
Gold bars weights are highly variant and often are not even homogenous nor fully fungible.
Generally speaking the larger the amount of gold contained within the bar the lower the premium is over spot price per gram.
Usually for a rectangular 1 kilogram gold bar the dimensions are 4 5 inches by 2 inches by 3 8 inch.
100 gram gold bars 100 gram 3 215 oz bars are the most popular metric gold bars with premiums ranging from 4 5 to 1 7 depending on quantities.
These bars can be produced by any mint or refinery and are most commonly found in 1 gram 2 5 gram 5 gram 10 gram 20 gram 100 gram and kilogram sizes.
Small metric weight gold bars are 9999 pure and are individually packaged as shown in the photos that accompany the below discussions about the various sizes.
A rectangular 1 ounce 31 1 g.
I recommend buying 1 ounce gold bars as they are easier to buy and easier to sell.
The 1 troy oz gold bar is the most common size traded around the world.