| Date | Bid | Offer |
|---|---|---|
| Sep 30 2011 | R$ 1.7839 | R$ 1.7850 |
| Sep 29 2011 | R$ 1.7685 | R$ 1.7695 |
| Sep 28 2011 | R$ 1.7722 | R$ 1.7732 |
| Sep 27 2011 | R$ 1.7663 | R$ 1.7672 |
| Sep 26 2011 | R$ 1.7832 | R$ 1.7844 |
| Sep 23 2011 | R$ 1.8213 | R$ 1.8223 |
| Sep 22 2011 | R$ 1.8401 | R$ 1.8410 |
| Sep 21 2011 | R$ 1.8298 | R$ 1.8307 |
| Sep 20 2011 | R$ 1.7997 | R$ 1.8007 |
| Sep 19 2011 | R$ 1.7940 | R$ 1.7950 |
| Sep 16 2011 | R$ 1.7440 | R$ 1.7452 |
| Sep 15 2011 | R$ 1.7325 | R$ 1.7337 |
| Sep 14 2011 | R$ 1.7430 | R$ 1.7441 |
| Sep 13 2011 | R$ 1.7283 | R$ 1.7295 |
| Sep 12 2011 | R$ 1.6966 | R$ 1.6975 |
| Sep 09 2011 | R$ 1.6811 | R$ 1.6823 |
| Sep 08 2011 | R$ 1.6793 | R$ 1.6805 |
| Sep 06 2011 | R$ 1.6726 | R$ 1.6737 |
| Sep 05 2011 | R$ 1.6661 | R$ 1.6672 |
| Sep 02 2011 | R$ 1.6641 | R$ 1.6651 |
| Sep 01 2011 | R$ 1.6438 | R$ 1.6448 |
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