| Date | Bid | Offer |
|---|---|---|
| Sep 28 2018 | R$ 5.2243 | R$ 5.2267 |
| Sep 27 2018 | R$ 5.2517 | R$ 5.2541 |
| Sep 26 2018 | R$ 5.3463 | R$ 5.3479 |
| Sep 25 2018 | R$ 5.4324 | R$ 5.4341 |
| Sep 24 2018 | R$ 5.3280 | R$ 5.3292 |
| Sep 21 2018 | R$ 5.3199 | R$ 5.3223 |
| Sep 20 2018 | R$ 5.4256 | R$ 5.4268 |
| Sep 19 2018 | R$ 5.4406 | R$ 5.4430 |
| Sep 18 2018 | R$ 5.4409 | R$ 5.4437 |
| Sep 17 2018 | R$ 5.4788 | R$ 5.4812 |
| Sep 14 2018 | R$ 5.4778 | R$ 5.4790 |
| Sep 13 2018 | R$ 5.4541 | R$ 5.4565 |
| Sep 12 2018 | R$ 5.3732 | R$ 5.3760 |
| Sep 11 2018 | R$ 5.4175 | R$ 5.4200 |
| Sep 10 2018 | R$ 5.3396 | R$ 5.3420 |
| Sep 06 2018 | R$ 5.3596 | R$ 5.3624 |
| Sep 05 2018 | R$ 5.3672 | R$ 5.3696 |
| Sep 04 2018 | R$ 5.3436 | R$ 5.3456 |
| Sep 03 2018 | R$ 5.3143 | R$ 5.3155 |
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