| Date | Bid | Offer |
|---|---|---|
| Aug 31 2020 | R$ 4.0407 | R$ 4.0422 |
| Aug 28 2020 | R$ 4.0185 | R$ 4.0216 |
| Aug 27 2020 | R$ 4.0614 | R$ 4.0630 |
| Aug 26 2020 | R$ 4.0202 | R$ 4.0218 |
| Aug 25 2020 | R$ 4.0190 | R$ 4.0206 |
| Aug 24 2020 | R$ 4.0126 | R$ 4.0136 |
| Aug 21 2020 | R$ 4.0104 | R$ 4.0119 |
| Aug 20 2020 | R$ 4.0547 | R$ 4.0569 |
| Aug 19 2020 | R$ 3.9709 | R$ 3.9719 |
| Aug 18 2020 | R$ 3.9541 | R$ 3.9551 |
| Aug 17 2020 | R$ 3.9293 | R$ 3.9309 |
| Aug 14 2020 | R$ 3.8586 | R$ 3.8601 |
| Aug 13 2020 | R$ 3.8512 | R$ 3.8527 |
| Aug 12 2020 | R$ 3.9081 | R$ 3.9113 |
| Aug 11 2020 | R$ 3.8826 | R$ 3.8841 |
| Aug 10 2020 | R$ 3.8617 | R$ 3.8627 |
| Aug 07 2020 | R$ 3.8828 | R$ 3.8837 |
| Aug 06 2020 | R$ 3.8605 | R$ 3.8615 |
| Aug 05 2020 | R$ 3.8062 | R$ 3.8072 |
| Aug 04 2020 | R$ 3.8121 | R$ 3.8130 |
| Aug 03 2020 | R$ 3.7711 | R$ 3.7720 |
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