Australia Dollar to US dollar: Treasury reporting rate
As of : The U.S. Treasury’s reporting rate of exchange for Australia-Dollar is 1.435 units per US$1, as published for the quarter ending Sep 30, 2026. It is a quarterly rate for federal agencies, not a live market rate. That is -1.10% versus the previous quarter.
These are the Treasury's quarterly reporting rates for federal agencies, not live market rates. Do not use them to convert money for a payment or trade: use the rate your bank or provider quotes.
Last checked against the source: . Changes and averages are calculated by this site from the published quarterly rates.
Extended data
Measure
Value
Currency
Australia-Dollar
Latest reporting rate (units per US$1)
1.435
Latest record date
Sep 30, 2026
Previous quarter rate
1.451
Change vs previous quarter (calculated)
-1.10%
Rate one year earlier (4 quarters back)
1.513
Change vs one year earlier (calculated)
-5.16%
Highest rate in this series (units per US$1)
1.979
Date of the highest rate
Jun 30, 2001
Lowest rate in this series (units per US$1)
0.9300
Date of the lowest rate
Jun 30, 2011
Average of all quarterly rates (calculated)
1.351
US dollars per 1 unit of this currency (calculated, 1 / rate)
0.6969
First record in the series
Mar 31, 2001
Quarterly records in the series
103
Latest quarterly rates
Quarter-end record date
Units per US$1
Sep 30, 2026
1.435
Jun 30, 2026
1.451
Mar 31, 2026
1.453
Dec 31, 2025
1.495
Sep 30, 2025
1.513
Jun 30, 2025
1.531
Mar 31, 2025
1.600
Dec 31, 2024
1.612
How the figures are counted: change = (latest rate ÷ earlier rate − 1) × 100; US dollars per unit = 1 ÷ rate; the average is the simple mean of all quarterly rates in the series.
Worked example: Australia-Dollar: 1.435 now vs 1.451 last quarter = -1.10%; 1 ÷ 1.435 = 0.6969 US dollars per unit.
Frequently asked questions
What is the Treasury exchange rate for Australia-Dollar?
The latest Treasury reporting rate is 1.435 units per US$1, for the quarter ending Sep 30, 2026.
How has the Australia-Dollar rate changed?
It moved -1.10% versus the previous quarter (1.451) and -5.16% versus four quarters earlier (1.513).
What were the highest and lowest rates?
In this series the highest rate was 1.979 on Jun 30, 2001 and the lowest was 0.9300 on Jun 30, 2011.
Is this a live market exchange rate?
No. The Treasury publishes reporting rates every quarter for federal agencies. For a payment, transfer or trade, use the rate quoted by your bank or provider.
Where does the data come from?
From the Treasury Reporting Rates of Exchange dataset on the U.S. Treasury's Fiscal Data site, read through its public API.