
Australia's currency is the Australian dollar, which is divided into 100 cents. The coins of the Australian dollar were introduced on 14 February 1966, and include 5c, 10c, 20c, 50c, $1 and $2 coins. The $1 and $2 coins are gold-coloured, while the 5c, 10c and 20c coins are silver-coloured. The 50c coin is the heaviest, while the 5c coin is the lightest. Australia's coins are produced by the Royal Australian Mint in Canberra, which also produces collectable coins, medals, medallions, tokens and commemorative coins.
| Characteristics | Values |
|---|---|
| Date of introduction of Australian dollar | 14 February 1966 |
| Date of introduction of $1 and $2 coins | 1984 and 1988, respectively |
| Composition of $1 and $2 coins | 2% nickel, 6% aluminium and 92% copper |
| Composition of "silver" 5c, 10c, and 20c coins | 56.5g per dollar |
| Composition of gold coins | Copper, aluminium and nickel |
| Composition of silver coins | Copper and nickel |
| Metal of collectable coins | Aluminium bronze, silver, gold and bi-metal |
| Denominations of collectable coins | Denominated in dollars or by weight value |
| Previous currency | Pounds, shillings and pence |
| Date of introduction of Australian silver coins | 1910 |
| Denominations of Australian silver coins | Florins, shillings, sixpences and threepences |
| Denominations of Australian coins | 5 cents, 10 cents, 20 cents, 50 cents, one dollar and two dollars |
| Number of sides of 50 cent coin | 12 |
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What You'll Learn
- Australian coins have featured King Charles III since 2023
- Collectable coins are made from gold, silver, aluminium bronze and platinum
- The 5c, 10c and 20c coins can be counted by weight
- Australia's first official coins were British George III one-penny coins
- The 50-cent coin is the heaviest Australian coin

Australian coins have featured King Charles III since 2023
Australian coins have a rich history, with the country adopting the decimal system and introducing the Australian dollar in 1966. The Australian dollar replaced the Australian pound, and this transition saw the introduction of 1, 2, 5, 10, 20, and 50 cent coins. Over the years, the composition and design of these coins have evolved, with some denominations being discontinued or replaced with different materials.
In 2023, a significant change occurred in the design of Australian coins. Following the death of Queen Elizabeth II, the Royal Australian Mint began minting new coins featuring King Charles III on their obverse. This transition started with the $1 coin in late 2023 and continued with the 5c and $2 coins. By May 16, 2024, King Charles III's effigy was featured on all six circulating coins, including the 5c, 10c, 20c, 50c, $1, and $2 denominations. This marked the first time in nearly 60 years that a new monarch appeared on the full suite of Australian coins.
The effigy of King Charles III on the new coins was unveiled in October 2023, and the Royal Australian Mint released a 2024 six-coin year set featuring the King's image. These coin sets, made from fine silver and gold, were created to commemorate the transition to a new monarch and reflect Australia's connection to the Crown. The coins in regular circulation are typically made from aluminium bronze and copper metal blanks, ensuring a consistent supply of high-quality currency.
The Royal Australian Mint has a tradition of releasing collectible coins, which are legal tender and highly sought-after by collectors. These collectible coins are made from various metals, including aluminium bronze, silver, gold, and bi-metal, offering a range of options for enthusiasts. The transition to King Charles III effigy on Australian coins in 2023 and the subsequent release of the 2024 coin sets marked an important chapter in the country's numismatic history, honouring the new monarch and continuing the tradition of commemorating significant events through coin design.
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Collectable coins are made from gold, silver, aluminium bronze and platinum
Australian coins have an interesting history, with the country adopting the decimal system in 1966, introducing the Australian dollar and coins in denominations of 1, 2, 5, 10, 20, and 50 cents. The $1 coin was released in 1984, followed by the $2 coin in 1988, both of which replaced their banknote equivalents. These coins have featured various effigies of Queen Elizabeth II, with a new design of King Charles III being introduced in 2023.
Beyond their standard currency, Australia has a rich culture of collectable coins, which are made from a variety of precious metals, including gold, silver, aluminium bronze, and platinum. These coins are minted by the Royal Australian Mint and The Perth Mint, with some being highly sought after by global collectors. One of the most famous collectable coin series is the 1980-1994 gold $200 coins. These collectable coins are legal tender and can be used as currency or exchanged for regular coins at banks.
The precious metal content of these coins is notable, with some "nugget coins" being valued by weight in gold or platinum. The Perth Mint offers bullion coins in a range of weights and sizes, providing collectors with various options. Silver also plays a significant role in Australian collectable coins, with the original 50-cent coin containing 80% silver, leading to its withdrawal due to the metal's value exceeding its face value.
Additionally, Australia's history includes the use of foreign and British currencies during the colonial era, with the country adopting British currency as its official currency in 1825. The transition to Australian silver coins occurred in 1910, with the introduction of florins, shillings, sixpences, and threepences bearing the portrait of King Edward VII.
Collectable coins in Australia are not just a hobby but also a way to honour the country's history and culture. With the Royal Australian Mint regularly releasing new designs, collectors have a wide range of options to choose from, ensuring the continuation of this unique aspect of Australian numismatics.
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The 5c, 10c and 20c coins can be counted by weight
The ""silver" 5c, 10c, and 20c Australian coins have the same weight per value, allowing them to be counted by weight without needing to count individual pieces. These coins have a weight of 0.565g per cent or 56.5g per dollar. This means that one kilogram of any combination of these coins is worth $17.70. This property is useful for banks and individuals to quickly determine the value of a collection of these coins without having to count each one.
The 5c, 10c, and 20c coins are part of the Australian dollar coinage system, which was introduced on February 14, 1966, replacing the Australian pound. The original set of coins included 1, 2, 5, 10, 20, and 50 cent coins, with the $1 and $2 coins being introduced later in 1984 and 1988, respectively.
Over the years, there have been various designs and commemorative issues of these coins. The 5c, 10c, and 20c coins are often referred to as "silver" coins, although they are made of 75% copper and 25% nickel. The original 50c coin, which was circular and contained 80% silver and 20% copper, was withdrawn from circulation after one year due to its similarity to the 20c coin and the value of the metal exceeding its face value.
The 5c, 10c, and 20c coins have a unique property where their weight-to-value ratio allows for easy calculation of the total value of a collection without needing to count each coin individually. This makes transactions and counting at banks more efficient and convenient.
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Australia's first official coins were British George III one-penny coins
During the early days of the Australian colonies, foreign and British currency was used interchangeably. In 1800, the then-Governor of New South Wales, Philip Gidley King, issued a proclamation that 10 specific coins from various countries, including Britain, the Netherlands, and India, would be brought into the colony with inflated denominations. This was done to ensure that the coins remained in circulation within the colony.
In 1812, Governor Lachlan Macquarie of New South Wales purchased Spanish dollar coins, paying four shillings and nine pence for each dollar. He was concerned that these coins would be quickly exported out of the colony, so he had holes cut in the middle of them. These became known as 'Holey dollars', valued at five shillings, and the middle piece was called the 'dump', valued at around 15 pence. Both were declared legal currency in 1813 and circulated in 1814. The Holey dollar was no longer legal tender after 1829.
British currency became the official currency of the Australian colonies after 1825, with almost £100,000 worth of British coins imported between 1824 and 1825. Australia continued to use British coins until 1910, when Australian silver coins were introduced. These included florins, shillings, sixpences, and threepences, featuring a portrait of King Edward VII. Australian pennies and half-pennies were introduced into circulation the following year.
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The 50-cent coin is the heaviest Australian coin
The coins of the Australian dollar were introduced on 14 February 1966, though they did not initially include the one-dollar or two-dollar coins. The one-dollar coin was introduced in 1984, and the two-dollar coin in 1988. The two-dollar coin is smaller in diameter than the one-dollar coin, but it is slightly thicker. The minting of one- and two-cent coins was discontinued in 1991, and they were withdrawn from circulation in 1992.
The Royal Australian Mint has released many commemorative designs for the 50-cent coin. For example, in 2000, a unique effigy by Vladimir Gottwald was used for the royal visit commemorative fifty-cent piece. This is the only Australian decimal coin to have an obverse designed by an Australian, and it also has a portrait of the queen that is not used on British currency. The Australian fifty-cent coin was also the first to display a variation of the reverse design in 1970 to commemorate the bicentennial of Lieutenant James Cook's landing in Australia.
The Royal Australian Mint also regularly releases other collectible coins, such as the 1980-1994 gold two-hundred-dollar coin series. Australian collectible coins are all legal tender and can be used directly as currency or converted to "normal" coinage at a bank. These coins are made from various metals, including aluminium bronze, silver, gold, and bi-metal.
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Frequently asked questions
Australian coins are made from copper, aluminium, nickel, silver and gold.
Australian coins are 5 cents, 10 cents, 20 cents, 50 cents, one dollar and two dollars. The $1 and $2 coins are gold-coloured, while the 5c, 10c and 20c coins are silver-coloured. The 50-cent coin is the heaviest, and the 5-cent coin is the lightest.
All Australian coins have two sides: the 'heads' side (or 'obverse' side) and the 'tails' side (or 'reverse' side). Until recently, all Australian coins featured a depiction of Queen Elizabeth II on the obverse. Following her death, new coins began to be minted with King Charles III on the obverse in December 2023.
Australian coins with a bumpy edge are called 'milled' coins. There is only one coin that is not milled.
During the early days of the colonies that formed Australia, foreign as well as British currency was used. Australia used pounds, shillings and pence until 1966, when it adopted the decimal system with the Australian dollar divided into 100 cents.











































