Is the dollar expensive or cheap against the real?
The exchange rate never moves for a single reason. Here we bring together everything that drives the currencyexpensive or cheapis the real weak or is the dollar strong worldwide? We do not try to predict the future: we show a picture of the present, with public data from official sources.
Summary: what all of this says
The whole page distilled into one conclusion. Arrows show which way each signal pushes the dollar (🔺 up · 🔻 down · ▪ neutral).
Comparison panel — the dollar against everything at once
Every force on the same scale (all starting at 100). Where the dollar line pulls away from the others, a gap
Where is the dollar heading? — what the market forecasts
Not our guess. It is the consensus of about 120 institutions (the central bank's Focus survey) and the yield curve — what the market actually expects and what it locks in through interest rates.
Market consensus (Focus survey)
Median forecast for the exchange rate at the end of each year.
Yield curve — the locked-in rate
The forward rate implied by the interest rate gap (the carry). Not a forecast: it is the price you can lock in today.
Is it the real or the dollar? — the real vs the dollar worldwide (DXY)
Both lines start at the same point (base 100). If they rise together, the dollar is strong everywhere. If only the rate in Brazil rises, the problem is domestic.
The exchange rate over the last 15 years — and where it sits in the band
The blue line is the exchange rate. The shaded band is the normal zone (5-year average ± deviations). The dashed line is purchasing power parity. Above the band = stretched; below = cheap.
The model: what drives the dollar, in numbers
A statistical regression combining the three main factors to explain currency moves.
Weight of each factor in today's moves:
Comparisons: the dollar against each force (15 years)
Each chart overlays the exchange rate (blue) on one driver, both rebased to 100. See when they move together and when they diverge.
Country risk vs the dollar (EMBI+ through 2024 — source discontinued)
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Commodities vs the dollar
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Interest rate gap vs the dollar
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The real vs emerging market currencies
Is the real doing better or worse than its peers? (base 100, 5 years)
Seasonality — does the dollar have months when it tends to rise?
Average move in each calendar month over roughly the last 18 years. Red = tends to rise; green = tends to fall. A historical pattern, not a guarantee.
Risk calendar — what could move the currency
The next interest rate decisions in Brazil (Copom) and in the US (Fed) are the events that move the currency most.
What sets the price of the dollar?
One minute each, no jargon. Tap to open.
Where the data comes from
All from official public sources, updated automatically, with no opinion of ours in the numbers:
- Exchange rate (PTAX), inflation (IPCA), reserves and trade balance:
- Dollar index (DXY) worldwide:
- Real effective exchange rate (REER):US inflation (CPI):Global fear gauge (VIX):Commodities:
- Country risk (EMBI+):Foreign investor flows:
- Market forecasts:Interest rates (Selic and Fed) and calendars:Selic e US interest rates
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The US dollar trades at R$ 5.1604 against the Brazilian real today (PTAX venda (Banco Central), August 26, 2026). By our analysis that price is fairly priced: estimated fair value for USD/BRL is around R$ 5.28, within a reasonable band of R$ 3.95 to R$ 5.59.
There is no single "correct" price for a currency — there is a reasonable band implied by fundamentals. Today the deviation from the centre of that band is -2.30%. The DXY, which measures the dollar against other major currencies, stands at 99.13: it answers whether the move is coming from the dollar globally or from the real at home.
The heaviest force on the exchange rate is the interest rate gap: Brazil's Selic at 14.00% against the Fed at 3.50% – 3.75% leaves a differential of 10.38 percentage points in favour of the real, which attracts capital to Brazil. Pulling the other way, country risk (EMBI) sits at 228 basis points.
Frequently asked questions
What is the dollar to real exchange rate today?
The US dollar trades at R$ 5.1604, according to PTAX venda (Banco Central) on August 26, 2026.
Is the dollar expensive or cheap against the real?
By our analysis, the dollar at R$ 5.1604 is fairly priced. Estimated fair value is R$ 5.28, with a reasonable band between R$ 3.95 and R$ 5.59.
Is this a good time to buy dollars?
It depends on your goal. For travel or holding a hard-currency reserve, what matters is whether the price sits inside the fair band — today the deviation is -2.30%. This is educational content, not investment advice.
What drives the dollar against the real?
The main forces are the interest rate gap between Brazil and the US (today 10.38 percentage points in favour of the real), the dollar's global strength as measured by the DXY (today 99.13), country risk and foreign capital flows. When Brazilian rates rise, the real tends to strengthen; when US rates rise, the dollar tends to gain.
What is the difference between commercial and tourism dollar rates in Brazil?
The commercial rate is used in financial and trade operations — it is the source of the R$ 5.1604 quote shown here (PTAX, the average calculated by Brazil's central bank). The tourism rate applies to physical cash at exchange bureaus and is higher, because it embeds operating costs, spread and the IOF tax.
What is the dollar forecast for the end of the year?
The median forecast in the central bank's Focus survey points to around R$ 5.20. Currency forecasts are wrong often — treat this as a reference, not a prediction.