21 AUD to USD

To convert 21 Australian Dollars into the US Dollars, we use the live exchange rates as of 18:50 today. 21 Australian Dollars equals 13.8972 Dollars. Currency online exchange rates from are updated every 5 minutes.
21 Australian Dollars to the US Dollar currency converter chart shows the dynamics of changes of the Australian Dollar against the Dollar. Today the cost of 21 AUD in USD is equal to 13.8972 USD, for 7 days the value has changed to +1.5057%.

1 Australian Dollar = 0.6618 USD
The calculation of the value of 21 Australian Dollars into US Dollar is based on live exchange rates of the live exchange rates today, 2025-12-04, and is 13.8972 USD.

For convenience, the chart shows fluctuations in the Australian Dollar against the Dollar quotations for the previous day, week, month, and year. Over the past month, the Australian Dollar reached its maximum on 2025-12-04, and was worth 13.8972 USD, and the minimum on 2025-11-20, when it was 13.5318 USD.
The chart shows 21 Australian Dollars to US Dollars dynamics. It allows us to find out the exchange rate of the pair for a specific day or period. You can switch to see the rates for the last 3 or 6 months or a year and using the information, make approximate short-term forecasts of the Australian Dollar to the US Dollar rates.