21 USD to AUD

To convert 21 US Dollars into the Australian Dollars, we use the live exchange rates as of 21:56 today. 21 Dollars equals 31.9326 Australian Dollars. Currency online exchange rates from are updated every 5 minutes.
21 US Dollars to the Australian Dollar currency converter chart shows the dynamics of changes of the Dollar against the Australian Dollar. Today the cost of 21 USD in AUD is equal to 31.9326 AUD, for 7 days the value has changed to +0.3157%.

1 Dollar = 1.5206 AUD
The calculation of the value of 21 US Dollars into Australian Dollar is based on live exchange rates of the live exchange rates today, 2025-09-29, and is 31.9326 AUD.

For convenience, the chart shows fluctuations in the Dollar against the Australian Dollar quotations for the previous day, week, month, and year. Over the past month, the Dollar reached its maximum on 2025-09-02, and was worth 32.2119 AUD, and the minimum on 2025-09-16, when it was 31.4097 AUD.
The chart shows 21 US Dollars to Australian 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 US Dollar to the Australian Dollar rates.