| Date | Bid | Offer |
|---|---|---|
| Sep 30 2021 | R$ 4.2913 | R$ 4.2931 |
| Sep 29 2021 | R$ 4.2474 | R$ 4.2492 |
| Sep 28 2021 | R$ 4.2697 | R$ 4.2716 |
| Sep 27 2021 | R$ 4.2284 | R$ 4.2302 |
| Sep 24 2021 | R$ 4.2153 | R$ 4.2171 |
| Sep 23 2021 | R$ 4.1760 | R$ 4.1778 |
| Sep 22 2021 | R$ 4.1442 | R$ 4.1460 |
| Sep 21 2021 | R$ 4.1475 | R$ 4.1492 |
| Sep 20 2021 | R$ 4.1593 | R$ 4.1601 |
| Sep 17 2021 | R$ 4.1671 | R$ 4.1689 |
| Sep 16 2021 | R$ 4.1463 | R$ 4.1481 |
| Sep 15 2021 | R$ 4.1538 | R$ 4.1555 |
| Sep 14 2021 | R$ 4.1259 | R$ 4.1276 |
| Sep 13 2021 | R$ 4.1278 | R$ 4.1296 |
| Sep 10 2021 | R$ 4.1279 | R$ 4.1297 |
| Sep 09 2021 | R$ 4.1748 | R$ 4.1765 |
| Sep 08 2021 | R$ 4.1411 | R$ 4.1419 |
| Sep 06 2021 | R$ 4.1305 | R$ 4.1313 |
| Sep 03 2021 | R$ 4.1257 | R$ 4.1275 |
| Sep 02 2021 | R$ 4.1179 | R$ 4.1187 |
| Sep 01 2021 | R$ 4.0877 | R$ 4.0885 |
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