How Many Grams are in 1 Lot of Gold? Calculations in USD and IDR
2026-01-12
The question of 1 lot of gold is how many grams often arises, especially from beginners who are just interested in investing or trading gold online.
This is understandable, as the term "lot" isn't used in everyday physical gold trading. People are usually more familiar with grams or kilograms.
However, in the world of online gold trading, lot units are crucial to understand. Without understanding the conversion, you could miscalculate your capital, potential profits, and even risk.
So, in this article, we will discuss in detail what a lot is in gold, how much a gram is worth, and how to calculate the price of gold in USD and rupiah (IDR).
Key Takeaways
- 1 lot of gold is equivalent to 100 troy ounces or approximately 3,110 grams.
- World gold prices are calculated per troy ounce, not per gram.
- Online gold trading allows large lot transactions with smaller capital.
What is a Lot in Gold Trading?

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In the context of online gold trading,lot is a unit of contract measurement which is used to determine transaction volume.
Unlike physical gold which is sold per gram or per bar, gold on the global market is traded in the form of contracts.
Gold in the international market is usually paired with the US dollar and is written asXAU/USD. This means that the price of gold is expressed in USD for every troy ounce of gold.
This is where the concept of lots comes into play. Lots help traders determine the size of their positions without actually having to physically own the gold.
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How Many Grams is 1 Troy Ounce of Gold?
Before answering how many grams is 1 lot of gold, we must first understand the basic units, which is troy ounce.
In global gold trading:
1 troy ounce = 31.1 grams of gold
This unit differs from the common ounce commonly used in everyday life. Therefore, if you look at the world gold price, it's almost certainly calculated in troy ounces.
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How Many Grams is 1 lot of gold?
Now let's get to the heart of the matter. In online gold trading:
1 lot emas = 100 troy ounce
100 troy ounce x 31,1 gram = 3.110 gram
It means, 1 lot of gold is equivalent to 3.11 kilograms of gold
This amount is considered very large when compared to physical gold investments, which are generally only a few grams or tens of grams.
Example of Calculating the Price of 1 Lot of Gold in Dollars (USD)
For example, the current world gold price is at the level:USD $2.000 per troy ounce
So the value of 1 lot of gold is:
100 x USD 2.000 = USD 200.000
This means that if you buy one lot of physical gold, you'll need to prepare US$200,000. This is clearly not a small amount for most people.
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Example of Calculating the Price of 1 Lot of Gold in Rupiah (IDR)
Now let's convert it to rupiah to make it easier to imagine.
For example:
Gold price: USD 2,000 per troy ounce
Cost USD to IDR: Rp15,0
For:
Price per gram = USD 2,000 / 31.1 ≈ USD 64.3
Price per gram in IDR = USD 64.3 x Rp. 15,000 ≈Rp964.500
Because 1 lot = 3.110 gram, for:
Rp964.500 x 3.110 gram ≈ Rp. 3 billion
So roughly, the value of 1 lot of gold can reach around IDR 3 billion, depending on the gold price and the dollar exchange rate.
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Online Gold Trading
This is what makes online gold trading attractive. Although 1 lot of gold is worth a lot, traders...no need to provide full funds like buying physical gold.
In online gold trading, there is a concept: contract size dan leverage. Leverage allows traders to open large positions with relatively small capital.
For example, with certain leverage, traders can open 1 lot of gold with only around USD 1,000 or even less, depending on the platform's policy.
However, it's important to remember that leverage is a double-edged sword. The potential for profit is large, but the risks also not small.
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The Difference Between Online Gold Trading and Physical Gold
Online gold trading and physical gold investment have very different characteristics.
On physical gold:
- You have to buy first before you can sell.
- Need storage space.
- Relatively large capital.
Meanwhile, in online gold trading:
- Can buy or sell without having physical gold.
- You can profit when prices rise or fall.
- More flexible and faster.
That is why many modern investors choose gold trading as a portfolio diversification tool.
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Conclusion
So, if you are still wondering lot of gold is how many grams, the answer is3,110 grams or 3.11 kilograms of gold. Its value can reach hundreds of thousands of dollars or billions of rupiah if calculated physically.
However, with online gold trading, such large transactions can be executed with much smaller capital thanks to leverage. While it may seem attractive, ensure you fully understand how it works to manage risk.
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FAQ
How many grams is 1 lot of gold?
1 lot of gold is equivalent to 100 troy ounces or approximately 3,110 grams.
Why is gold measured in troy ounces?
Because the troy ounce is the international standard for trading precious metals such as gold and silver.
Is 1 lot of gold always 3.110 grams?
In standard online gold trading, yes. However, always check the contract specifications on the platform you're using.
Can you buy 1 lot of gold without a large capital?
It is possible to trade gold online with leverage, but the risks also higher.
Which is safer, physical gold or gold trading?
Both have advantages and disadvantages. Physical gold is suitable for long-term investments, while gold trading is more suitable for active investors who understand the risks.
Disclaimer: The views expressed belong exclusively to the author and do not reflect the views of this platform. This platform and its affiliates disclaim any responsibility for the accuracy or suitability of the information provided. It is for informational purposes only and not intended as financial or investment advice.



