What is an Ounce (Oz) of Gold? Convert 1 Ounce of Gold to Chi, Luong, Grams

Ounce is a familiar unit of measurement in many Western countries, especially in the field of gold, silver, and platinum jewelry. However, in Vietnam, this unit of measurement is not widely known and used, leading many people to be unclear about the ounce. So, what is an ounce, how does 1 ounce of gold convert to "luong," "chi," or "cay"? Please join us to find out in the article below!

What is 1 ounce of gold?

An ounce of gold is a Western unit, transliterated into Vietnamese as "aoxơ," abbreviated as oz. Depending on the field, this unit may be written differently, such as: ons, unze, once. It is commonly used in the UK and the US to measure the volume, mass, and weight of gold.

Ounce is a popular unit of measurement worldwide

This is a widely used unit of measurement worldwide. Currently, there are 5 different types of oz:

• Metric Ounce: This unit is abbreviated as ons and is used to measure distance.
• Apothecaries' Ounce: Abbreviated as U+2125 and used by apothecaries. However, this unit is no longer in use today.
• Maria Theresa Ounce: This is a form of ounce used in Ethiopia – a country in Africa – and some European countries.
• International avoirdupois ounce: Abbreviated as oz, this is the most commonly used unit in the United States and a common measuring unit for weight. 1 international avoirdupois ounce ≈ 28.35 grams.
• International troy ounce: Also known as "luong tay" (different from "luong ta" or "lang"), abbreviated as ozzt. Troy ounces are often used to weigh gold, silver, and platinum.

Throughout the development of measurement systems, the ounce has become an important part of the system.

1 Ounce of gold equals how many chi, luong, grams, kg?

1 ounce of gold is equivalent to approximately 31.1035 grams, about 8.29 chi, about 0.829 luong, and about 0.0311 kg. This conversion is based on the "troy ounce" unit commonly used in the international market for gold pricing, while the Vietnamese market uses the "chi" and "luong" units.

Specifically:

• 1 ounce of gold ≈ 31.1035 grams of gold
• 1 ounce of gold ≈ 8.29 chi of gold (since 1 chi = 3.75 grams, so 31.1035 / 3.75 ≈ 8.29)
• 1 ounce of gold ≈ 0.829 luong of gold (since 1 luong = 10 chi, so 8.29 / 10 ≈ 0.829)
• 1 ounce of gold ≈ 0.0311 kg of gold

See also:

• How many kg is 1 gold bar? Conversion of 1 gold bar's weight
• What does a 1 Cay (Luong) wedding gold set include? What is the price?
• How to calculate gold pips, gold lots - How many is 1 pip XAUUSD?

How much is 1 ounce of gold in USD?

1 ounce of gold is worth approximately over 4,000 USD, but the exact figure changes with daily market fluctuations, as gold prices (XAU/USD) are volatile. Currently, on October 8, 2025, 1 ounce of gold is priced at approximately 4,027.8 USD.

However, as global gold prices constantly change, similar to USD prices, it is very difficult to accurately calculate how much 1 ounce is in USD. This conversion is quite complex, and you need guidance from experienced, professional individuals with high banking expertise. The price will be based on many different market factors:

• Current gold demand in the market.
• Gold and USD prices at the time of conversion.
• Interest rates for gold savings.
• Inflation rate of the country.
• Monetary policies of each country.

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Notes when buying gold in Ounce form

When buying and selling gold internationally, the ounce will be the unit for transactions. Some notes if buying gold by the ounce:

• First, you should convert the number of gold ounces into units like chi, luong, or cay to easily estimate. From there, you can easily decide how much value you should buy that is suitable for yourself.
• Gold prices are calculated based on the number of gold ounces, so you cannot track gold price fluctuations in Vietnam, but must follow the price fluctuations in the global gold market. Global gold prices will be lower than domestic gold prices due to limited domestic gold reserves.
• In addition to converting ounces to Vietnamese units of measurement, you also need to convert to currency units. For example, if you buy gold in the US, the gold price will be calculated in USD (USD/ounce). Therefore, you should also convert to Vietnamese Dong, as exchange rates and transaction fees can affect the final price you pay.
• Taxes and regulations in the country where you buy gold. For example, if you buy gold in the US, there will be export taxes applicable to gold import and export. So, to be sure, you should research the gold regulations in the host country and the applicable tax rates during the purchase.
• Abroad, there are many forms of gold trading such as: gold certificates, gold exchanges, or gold futures contracts... This gives you more options for gold investment, and the gold price will still be calculated based on the ounce unit.

Thus, the ounce is a unit of measurement that has been used for a very long time, from ancient times to the present. To make transactions easier, we should also know what 1 ounce of gold converts to in terms of luong, chi, and cay. This will help you understand better and effectively invest in gold in ounce form. Above are the information that Jemmia shares, hoping to give you a more comprehensive view.

See also: Top models of beautiful and luxurious diamond wedding rings not to be missed.