
As of July 29, 2025, 100 Australian dollars are equivalent to 65.178 US dollars. This means that one Australian dollar is worth 0.65 US dollars. The exchange rate can fluctuate by the minute while the markets are open, and the Australian dollar has decreased in value compared to the US dollar over the last decade.
| Characteristics | Values |
|---|---|
| Exchange rate as of July 29, 2025 | 1 AUD = 0.6518 USD |
| 100 AUD in USD | 65.178 USD |
| Average exchange rate from July 29, 2024, to July 28, 2025 | 0.6469 USD per AUD |
| Highest exchange rate in the last year | 0.6919 USD per AUD on September 30, 2024 |
| Lowest exchange rate in the last year | 0.5955 USD per AUD on April 8, 2025 |
| Highest exchange rate in the last 10 years | 0.8117 USD per AUD on January 28, 2018 |
| Year-to-date change | +5.28% |
| Change in the last 10 years | -10.55% |
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What You'll Learn

100 Australian dollars equal approximately 65 US dollars
As of July 29, 2025, 100 Australian dollars were equivalent to approximately 65 US dollars. This means that the exchange rate at the time was very close to 0.65 US dollars per Australian dollar. The Australian dollar has decreased in value compared to the US dollar; the average exchange rate from July 29, 2024, to July 28, 2025, was 0.6469 US dollars per Australian dollar.
The AUD/USD rate has fluctuated over the past year, with the high point being 0.6919 US dollars per Australian dollar on September 30, 2024, and the low point being 0.5955 US dollars per Australian dollar on April 8, 2025. The AUD/USD exchange rate tends to be highest between 3-4 PM GMT, as currency market liquidity and trading volume are usually at their peak during this time.
The US dollar is currently stronger than the Australian dollar, and the Australian dollar has lost purchasing power compared to the US dollar over the last decade. For context, on January 28, 2018, each Australian dollar was worth 0.8117 US dollars.
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The Australian dollar is worth less than the US dollar
As of 29 July 2025, 100 Australian dollars were equivalent to 65.178 US dollars. This means that the Australian dollar is worth less than the US dollar.
The Australian dollar has decreased in value compared to the US dollar. In the past decade, the Australian dollar has declined by 10.55% against the US dollar. This decline can be attributed to several factors that influence the exchange rate between the two currencies.
One significant factor is interest rates. When Australian interest rates increase relative to interest rates in the US, Australian assets that pay interest, such as government bonds, become more attractive to foreign investors. This leads to an influx of foreign investment into Australia, increasing the demand for the Australian dollar and contributing to a higher exchange rate. Conversely, when Australian interest rates decline, Australian assets become less appealing to foreign investors, reducing the demand for the Australian dollar and causing a depreciation in its value.
Another factor that affects the exchange rate is the theory of purchasing power parity (PPP). PPP suggests that exchange rates adjust over time so that the cost of an identical basket of goods and services is the same in any two countries. If goods and services in Australia are more expensive relative to the same goods in other economies, the demand for Australian goods and services decreases. This lowers the demand for the Australian dollar, causing it to depreciate. However, it is important to note that the exchange rate is not a direct reflection of the real value of money in terms of purchasing power. Workers in the US may earn half of what Australians do, but the US dollar has twice the purchasing power of the Australian dollar.
Additionally, the Australian dollar's value can be influenced by interventions in the foreign exchange market. The Reserve Bank of Australia (RBA) can intervene if the market becomes disorderly or dysfunctional or if the Australian dollar deviates significantly from its implied value based on Australia's economic fundamentals. For example, during the 2007-08 global financial crisis, the RBA intervened by buying Australian dollars to address excessive volatility in the exchange rate caused by rapid depreciations.
In summary, the Australian dollar is worth less than the US dollar due to a combination of factors, including interest rates, purchasing power parity, and interventions in the foreign exchange market. These factors influence the demand for and supply of the Australian dollar, ultimately impacting its value relative to the US dollar.
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The exchange rate is 0.65 US dollars per Australian dollar
As of July 29, 2025, the exchange rate is 0.65 US dollars per Australian dollar. This means that 100 Australian dollars are worth approximately 65 US dollars. To be precise, at this rate, 100 Australian dollars are worth 65.178 US dollars.
This exchange rate is subject to change and has fluctuated over time. For instance, in the period between July 29, 2024, and July 28, 2025, the average exchange rate was 0.6469 US dollars per Australian dollar. During this time, the Australian dollar's value compared to the US dollar decreased, with the rate reaching a low of 0.5955 on April 8, 2025.
The exchange rate of 0.65 US dollars per Australian dollar represents a strengthening of the Australian currency relative to the US dollar. As of July 29, 2025, the Australian dollar has increased by 5.28% year-to-date against the US dollar. However, over a longer period, the Australian dollar has declined in value against the US dollar. In the past ten years, the Australian dollar has decreased by 10.55% against its US counterpart.
Historically, the exchange rate has seen higher values. On January 28, 2018, each Australian dollar was worth 0.8117 US dollars, significantly higher than the current rate of 0.65. The exchange rate between the Australian dollar and the US dollar can fluctuate by the minute while the markets are open. However, generally, the period between 3-4 PM GMT is considered a good time to convert Australian dollars to US dollars, as currency market liquidity and trading volume tend to be highest during this time.
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The AUD/USD rate has decreased by 0.50%
As of July 29, 2025, 100 Australian dollars were equivalent to 65.178 US dollars. This means that one Australian dollar is worth 0.6518 US dollars. The AUD/USD rate has decreased by 0.50%, meaning the Australian dollar has decreased in value compared to the US dollar.
The AUD/USD rate is influenced by various factors, including interest rates, demand for Australian assets, and supply of Australian dollars. A decrease in the AUD/USD rate indicates that the Australian dollar has depreciated in value relative to the US dollar. This can be due to a combination of factors, such as a decline in Australian interest rates, a decrease in demand for Australian assets, and an increase in the supply of Australian dollars.
Australian interest rates play a significant role in the AUD/USD rate. When Australian interest rates decline relative to interest rates in other advanced economies, Australian assets become less attractive to foreign investors. This can lead to a decrease in demand for Australian dollars, causing the exchange rate to depreciate. Conversely, when foreign investors purchase more Australian assets due to attractive interest rates, more money flows into Australia, increasing the demand for the Australian dollar and supporting its appreciation.
Demand for Australian assets is another crucial factor influencing the AUD/USD rate. When there is a decline in demand for Australian assets, it leads to a decrease in demand for the Australian dollar. Additionally, an increase in the supply of Australian dollars, such as when Australian or foreign investors choose to hold more Australian assets, can also lead to a depreciation of the currency.
The AUD/USD rate is also impacted by macroeconomic factors, such as jobless claims and business activity figures. Upbeat US macroeconomic data can strengthen the US dollar and influence the exchange rate. Additionally, the US's trade deals with major partners, such as the trade pact with the EU, can further bolster the strength of the US dollar, affecting the AUD/USD rate.
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The Australian dollar has lost purchasing power against the US dollar
The Australian dollar has weakened against the US dollar, with 100 Australian dollars worth 67.40 US dollars, as of April 2025. This loss in purchasing power is due to a combination of factors, including the commodity prices Australia's currency is tied to, interest rates, and global trade tensions.
The Australian dollar's value is closely linked to the demand for commodities like iron ore. When the global economy experiences a slowdown, demand for these commodities decreases, which negatively impacts the Australian dollar. This was evident during the pandemic when the Australian dollar fell below 60 US cents. Additionally, lower commodity prices and expectations of interest rate cuts by the Reserve Bank contribute to the devaluation of the Australian dollar.
According to the theory of purchasing power parity (PPP), exchange rates adjust over time so that the cost of an identical basket of goods and services is the same in any two countries. If goods and services in Australia become relatively more expensive, demand for Australian goods and services decreases. This lowers the demand for the Australian dollar, causing it to depreciate.
Interest rates also play a crucial role in the exchange rate dynamics. Higher Australian interest rates can attract more foreign investment, leading to increased demand for the Australian dollar. However, if there are expectations of interest rate cuts or concerns about economic growth, it can lead to a sell-off of the Australian dollar, as investors seek safer alternatives.
Global trade tensions, particularly the US-China tariff war, have also impacted the Australian dollar. As China is Australia's largest trading partner, any potential tariffs on Chinese exports to the US can negatively affect the Australian economy and its currency.
The combination of these factors has led to the Australian dollar losing purchasing power against the US dollar. The extent to which this trend continues depends on various economic factors and their interactions, including commodity prices, interest rates, and the resolution of global trade disputes.
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Frequently asked questions
As of July 29, 2025, 100 Australian dollars were equivalent to 65.178 American dollars.
As of July 29, 2025, 1 Australian dollar is equivalent to 0.6518 US dollars.
The Australian dollar has declined by 10.55% against the US dollar over the past 10 years.
The highest rate in the last 10 years was on January 28, 2018, when 1 Australian dollar was worth 0.8117 US dollars.
The period between 3-4 PM GMT is often a good time to convert as currency market liquidity and trading volume tend to be the highest during this time. Additionally, it is advisable to convert early in the week to avoid delayed settlements until the following week.




























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