| Date | Bid | Offer |
|---|---|---|
| Sep 30 2025 | R$ 3.8177 | R$ 3.8186 |
| Sep 29 2025 | R$ 3.8271 | R$ 3.8283 |
| Sep 26 2025 | R$ 3.8313 | R$ 3.8326 |
| Sep 25 2025 | R$ 3.8356 | R$ 3.8369 |
| Sep 24 2025 | R$ 3.8214 | R$ 3.8229 |
| Sep 23 2025 | R$ 3.8350 | R$ 3.8357 |
| Sep 22 2025 | R$ 3.8685 | R$ 3.8698 |
| Sep 19 2025 | R$ 3.8674 | R$ 3.8690 |
| Sep 18 2025 | R$ 3.8411 | R$ 3.8427 |
| Sep 17 2025 | R$ 3.8507 | R$ 3.8520 |
| Sep 16 2025 | R$ 3.8617 | R$ 3.8629 |
| Sep 15 2025 | R$ 3.8552 | R$ 3.8565 |
| Sep 12 2025 | R$ 3.8726 | R$ 3.8734 |
| Sep 11 2025 | R$ 3.8933 | R$ 3.8940 |
| Sep 10 2025 | R$ 3.9082 | R$ 3.9095 |
| Sep 09 2025 | R$ 3.9225 | R$ 3.9232 |
| Sep 08 2025 | R$ 3.9262 | R$ 3.9275 |
| Sep 05 2025 | R$ 3.9027 | R$ 3.9042 |
| Sep 04 2025 | R$ 3.9469 | R$ 3.9476 |
| Sep 03 2025 | R$ 3.9506 | R$ 3.9519 |
| Sep 02 2025 | R$ 3.9659 | R$ 3.9669 |
| Sep 01 2025 | R$ 3.9517 | R$ 3.9533 |
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