| Date | Bid | Offer |
|---|---|---|
| Aug 31 2012 | R$ 3.2303 | R$ 3.2314 |
| Aug 30 2012 | R$ 3.2387 | R$ 3.2398 |
| Aug 29 2012 | R$ 3.2475 | R$ 3.2486 |
| Aug 28 2012 | R$ 3.2330 | R$ 3.2341 |
| Aug 27 2012 | R$ 3.2051 | R$ 3.2063 |
| Aug 24 2012 | R$ 3.2023 | R$ 3.2033 |
| Aug 23 2012 | R$ 3.2139 | R$ 3.2149 |
| Aug 22 2012 | R$ 3.1918 | R$ 3.1930 |
| Aug 21 2012 | R$ 3.1838 | R$ 3.1849 |
| Aug 20 2012 | R$ 3.1727 | R$ 3.1738 |
| Aug 17 2012 | R$ 3.1664 | R$ 3.1676 |
| Aug 16 2012 | R$ 3.1801 | R$ 3.1813 |
| Aug 15 2012 | R$ 3.1728 | R$ 3.1739 |
| Aug 14 2012 | R$ 3.1773 | R$ 3.1785 |
| Aug 13 2012 | R$ 3.1778 | R$ 3.1789 |
| Aug 10 2012 | R$ 3.1619 | R$ 3.1632 |
| Aug 09 2012 | R$ 3.1521 | R$ 3.1530 |
| Aug 08 2012 | R$ 3.1734 | R$ 3.1745 |
| Aug 07 2012 | R$ 3.1746 | R$ 3.1756 |
| Aug 06 2012 | R$ 3.1675 | R$ 3.1686 |
| Aug 03 2012 | R$ 3.1772 | R$ 3.1784 |
| Aug 02 2012 | R$ 3.1726 | R$ 3.1736 |
| Aug 01 2012 | R$ 3.1854 | R$ 3.1866 |
Source: Brazilian Central Bank
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Ptax is the main reference rate for the US Dollar in Brazil. It's published daily by the Brazilian Central Bank based on the quotes received from the major foreign exchange dealers in the Brazilian market. It's released by 1 PM (GMT-3) every business day.
Data available from Dec 05 1984 until Jan 28 2026