| Date | Bid | Offer |
|---|---|---|
| Aug 31 2011 | R$ 1.6974 | R$ 1.6985 |
| Aug 30 2011 | R$ 1.6971 | R$ 1.6981 |
| Aug 29 2011 | R$ 1.6953 | R$ 1.6963 |
| Aug 26 2011 | R$ 1.7032 | R$ 1.7044 |
| Aug 25 2011 | R$ 1.6882 | R$ 1.6892 |
| Aug 24 2011 | R$ 1.6778 | R$ 1.6790 |
| Aug 23 2011 | R$ 1.6842 | R$ 1.6854 |
| Aug 22 2011 | R$ 1.6665 | R$ 1.6675 |
| Aug 19 2011 | R$ 1.6657 | R$ 1.6669 |
| Aug 18 2011 | R$ 1.6683 | R$ 1.6695 |
| Aug 17 2011 | R$ 1.6673 | R$ 1.6685 |
| Aug 16 2011 | R$ 1.6686 | R$ 1.6698 |
| Aug 15 2011 | R$ 1.6709 | R$ 1.6720 |
| Aug 12 2011 | R$ 1.6714 | R$ 1.6726 |
| Aug 11 2011 | R$ 1.6735 | R$ 1.6746 |
| Aug 10 2011 | R$ 1.6513 | R$ 1.6523 |
| Aug 09 2011 | R$ 1.6639 | R$ 1.6649 |
| Aug 08 2011 | R$ 1.6549 | R$ 1.6559 |
| Aug 05 2011 | R$ 1.6484 | R$ 1.6496 |
| Aug 04 2011 | R$ 1.6550 | R$ 1.6560 |
| Aug 03 2011 | R$ 1.6766 | R$ 1.6776 |
| Aug 02 2011 | R$ 1.6961 | R$ 1.6973 |
| Aug 01 2011 | R$ 1.6992 | R$ 1.7003 |
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 Feb 27 2026