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How Heavy Is A Gold Bar?

Gold nuggets being being weighed on a weight balance.
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For years, gold has been associated with status and wealth. It’s not surprising that today, the standard gold bullion is still in use and represents an excellent investment. However, the weight of a gold bar was and still is a matter of debate. Many different factors impact the gold bar’s weight, including regional specifications, the purpose for which it’s used, and the type of gold bar.

For example, the United States officially holds more than 147 million ounces of gold bars with a total value of $250 billion. Each standard gold brick weighs around 400 troy ounces. When discussing gold bar weight, it is good to know what a gold bar is and how the bar is measured.

A gold bar is a minted gold item in a rectangular form. It’s sometimes referred to as a gold biscuit or gold bullion and may come in different sizes and weights. Gold bars are one of the most cost-efficient ways to add value to your investment portfolio. They are produced in large quantities and therefore carry smaller premiums than gold coins.


Categories Of Gold Bars

Gold bars around the world can be classified into 55 categories. The categorization is based on the weight of a gold bar, decoration, shape, and unique features.


Small Gold Bars (Under 1 Oz)

Considering there are many shapes and types of gold bars, the easiest way to categorize them is by size. Among investors, one-ounce bars are the most popular and commonly traded weights. Small gold bars are more affordable and a perfect option for investors on a tight budget. Some of the most popular small gold bar weights are:

  • 20 grams
  • 10 grams
  • 5 grams
  • 1 gram


Large Gold Bars (Over 1 Oz)

Gold bars can also be larger than 1 ounce. For those who want to buy and invest in larger gold bars as precious metals, the most popular price of gold options include 250-grams, 100-grams, or 50-gram gold bars. There are also gold bars in 10-ounce, 400-ounce, and 1-kilo bullion bar weights.

Larger gold bars offer higher value than smaller bars for gold content and are ideal for both investment and home storage. They can be stored in a bank safe deposit box, home safe, or a depository of your personal choice. Some bars come with added benefits, including a mark or an assay card, which is proof of the gold bar’s purity and content. Others come with a serial number, which is used to validate quality and authenticity.

Both small and large gold bars come in two styles:

  • Minted Gold Bars - Minted bars are one of the most commonly traded bars. They are manufactured by stamping a mint mark and inscription. You will recognize them by their bright shine and smooth finish.
  • Cast Gold Bars - Cast gold bars are manufactured by pouring liquid gold into specially designed molds. Each cast gold bar has a unique identifying mark and engraving. The key difference is that they are simpler in design and have a slightly more rugged finish.

While there can be many different sizes, we will discuss some of the most popular standard sizes of gold bars and how much they weigh.


A pile of gold bars with a British flag background.

LGD 400 oz bars have underpinned gold dealing in the London bullion market since 1919.


London 400 Oz Gold Bar

The London Good Delivery gold bars or LGD gold bar is the standard-sized bar used in investment portfolios and transactions on the London bullion market. They are the main bullion dealers. It is commonly known as the 400 oz bar (12.5 kg) and can range from 350 to 430 troy ounces. Investors pay based on the exact weight in ounces when they purchase. London gold bars have a minimum of 99/5% purity, which is also known as fineness and pure gold. Each mint manufactures a unique shape, but the traditional dimensions are:

  • Height: 1-1.8 inches
  • Length: 8.3-11.4 inches
  • Width: 2.2-3.3 inches


Comex 100 Oz Gold Bar

The Comex gold bar or 100 oz bar is a standard-sized bar used in investment portfolios and transactions on the NYMEX or New York Stock Exchange market. Its weight can range between 95 oz and 105 oz.


Shanghai 3000 G Gold Bar

This standard-sized bar weighing 3000 g is used on the Shanghai Gold Exchange market.


Kilobars 1000 G Gold Bar

The Kilobar is probably the most traded gold bar in the world. Most of them feature an international shape, while others come in the form of a brick.


Cast Gold Bar

Cast bars are also known as small gold bars and weigh between 400 and 500 g or less. For investors, the most popular weights are 100, 250, and 50 g. The smallest Cast gold bar weighs 10 g and is commonly found in Brazil.


Troy Ounce Gold Bar

For those interested in investing in small gold bars, Troy Ounce bars are an ideal option. Manufactured by the Perth Mint in Australia, their weight varies between 50 oz and ½ oz.


Three gold bars on a ten Indian rupee bank note.

Tola, also spelt as tolah or tole, is a term used in India and some other Asian countries to measure gold.


Tola Gold Bar

Tola bars are popular in India (tola is a standard Indian weight unit) and are traded in the Indian Subcontinent and the Middle East. The most popular Tola gold bar weighs 10 tolas, which is equivalent to 116.64 g or 3.75 oz.

The LGD bar is an expensive piece of gold, but the size and value limit its use for investment or trade. That’s why smaller kilobar gold bars came into existence - to provide opportunities for everyone to invest in gold. The 1000 g gold bar or 32.15 oz bar is quite popular among investors. It is almost shaped like chocolate and is a relatively flat bar with a smooth appearance.

The 1000 g gold bar is still worth a lot (the current market value is around $5,000). However, the size, relatively lower price tag, and portability have made the Kilobar an ideal choice for businesses, banks, and investment firms. In Asian markets, 1000, 100, and 10-gram bars are preferred as opposed to troy-ounce bars. In Europe, Kilobars (the 1000 g gold bars) are traded daily and more likely to be shaped in the classic brick shape than the chocolate one.


How Does The Weight Of A Gold Bar Affect Transactions?

Now that you know how much each type of gold bar weighs, let’s see how it affects your transaction, investment portfolio, and financial stability. It is essential to understand that each gold bar serves various purposes. Some gold bars are better for trading, while others serve as investment opportunities. In some cases, the weight of a gold bar is set by economic, political, and local concerns. The regional gold demand also plays a significant role in deciding how much a gold bar is worth.


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All articles are provided as a third party analysis and do not necessarily reflect the explicit views of GSI Exchange and should not be construed as financial advice.

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