How to Measure the Weight of Gold?

What’s gold weighed in? Is it in karats or ounces? Or can you measure it in grams or pennyweights?

Well, it can be measured using all of those units of measurements. It depends on your preference and whether you are interested in the weight or purity of gold.

Measuring the Purity of Gold in Karats

Gold’s fineness or purity is measured in karats (or carat (K), depending on which part of the world you come from) when alloyed with other metals. Common caratage include ​10K, 14K, 18K, 22K and 24K​.

Pure gold has 24 karats and is considered to be approximately 100 percent at that purity level. Each karat is ​1/24th​ of a whole, or ​4.1667 percent​.

For example, suppose you have a bracelet categorized as 10 karats. This means it consists of 10 parts gold and 14 parts of alloying metal. That also equals 41.6667 percent gold. On the other hand, if your wedding ring is rated 18 karats, it contains 18 parts gold and six parts of alloying metal. That is also equal to 75 percent gold.

Why Gold Karatage Differs

Typically, pure gold is pretty soft, and thus warps and bends easily. As a result, it is highly unsuitable for any item, such as jewelry, which needs to retain its shape. That is why it is mixed with other alloying metals.

Gold is also easily scratched. To prevent it from getting scuffed easily or losing its shine, it’s mixed with other metal alloys that will make it stronger and more resistant to scratches.

Also, the brightness of pure gold may be too much for many people. Metal alloys are used to reduce gold’s brightness to more acceptable levels.

In addition, gold is very expensive. A piece of 22-karat gold jewelry has twice as much gold as a 10-karat one. And it will probably be twice as expensive.

You can see why it makes more sense to use alloying metals like silver or copper to cut the costs of manufactured gold items while imbuing them with their strengths simultaneously. But the karatage will vary, depending on the kind of product you are looking for and its functionality.

It is worth noting that the U.S. requires items to be at least 10K to legally qualify as gold.

Measuring the Weight of Gold in Grams

Gold can also be measured in grams. Typically, one karat of gold is one fifth ​of a gram. So, it is divided by five to get 0.2 grams.

That means you can find the total weight in grams by multiplying 0.2 grams by each karat. For example, 10K gold is equal to two grams.

A karat is also equivalent to ​200 milligrams​. That is because there are ​1,000 milligrams​ to a gram.

Measuring the Weight of Gold in Ounces

You could calculate the weight of gold in both ounces and Troy ounces. Typically, an ounce (oz.) refers to ​28.35 gram​s. On the other hand, the Troy ounce (t oz.) refers to ​31.103 grams​.

These two units of measurement may be used when weighing gold bullion, but the latter is the more commonly used term in the gold market world. Using the former unit of measurement may cause market losses since your final calculations may be as much as 10 percent off the mark.

Smaller gold traders tend to use 100-Troy-ounce bars, while large-scale gold traders tend to operate using 400-Troy-ounce bars.

Measuring the Weight of Gold in Pennyweight

A pennyweight (DWT) is ​1/20th​ of Troy ounce, which means ​20 pennyweights​ make up one Troy ounce. That translates to ​0.05 t oz.

So, a pennyweight of gold represents about ​1.555 grams​ of gold. You can get that by dividing the 31.103 grams in a Troy ounce by 20.

Learning about the various ways gold can be measured can enable you to calculate the price. In addition, you can use the available information to determine how much you should invest to obtain a specified amount of gold.