Online Currency Converter - Real Time Exchange
Convert currencies instantly with quotes updated in real time. Dollar, Euro, Pound Sterling and Real.
What is the purpose?
This calculator converts values between world currencies using real-time exchange rates obtained via API. Supports major global currencies including USD, EUR, BRL, GBP, JPY, CNY, ARS, MXN and over 150 additional currencies.
Formula Used
Conversion is based on the current market exchange rate:
Moeda Destino = Moeda Origem × Cotação Atual (Commercial Rate)
How to interpret the result?
Displays the exact converted value and the corresponding exchange rate chart of the currency in the commercial foreign exchange market.
Practical Examples
If the commercial dollar rate today is $5.30:
- 100 dollars converted are equivalent to $530.00 in reais.
Usage Tips
- Monitor the volatility of the foreign exchange market before closing international tourism packages.
- For purchases abroad, remember to add the IOF value of 4.38% (progressive rate) applied to credit cards.
Important Observations
The commercial exchange rate quoted on the websites refers to electronic transactions between large banks and brokers, and is different from the physical tourist exchange rate.
Frequently Asked Questions (FAQ)
What is commercial exchange?
It is the reference exchange rate used for foreign trade transactions, imports and exports of goods in the country.
What is tourism exchange?
It is the rate applied to the purchase of physical paper money at exchange offices, which include operational costs and profit margin in the final quote.
How is the value of coins determined?
In the floating exchange rate regime, the value is determined by the law of supply and demand. Factors such as national interest rates, inflation, economic growth and political stability influence a currency's attractiveness to global investors.
What is the difference between the buying and selling rates on the exchange rate?
The purchase rate is the amount the financial institution pays you to purchase your foreign currency. The selling fee is the price the institution charges to sell the currency to you. The sales rate is always higher.
What is the exchange rate and how is it determined?
The exchange rate is the price of one currency in relation to another. It is determined by the foreign exchange market (Forex), the largest financial market in the world with a daily volume of over US$7.5 trillion. The rate fluctuates continuously according to supply and demand, influenced by differences in interest rates between countries, inflation, trade balance, flow of foreign investment and geopolitical factors.
What is the difference between commercial exchange and tourism exchange?
Commercial exchange rate is the rate used in transactions between companies, imports, exports and international bank transfers. The tourist exchange rate (PTAX) is the rate for transactions carried out by individuals, such as purchasing currency at exchange offices and travel cards — generally 3% to 8% more expensive than the commercial exchange rate. In addition to the fee, operations with foreign currency are subject to IOF: 0.38% for purchases with debit cards and 3.38% for credit and cash.
Why does the dollar rise when there is a crisis?
The US dollar is considered the global reserve currency and safe haven asset par excellence. In times of economic or geopolitical crisis, investors around the world sell risky assets (stocks, emerging currencies) and buy dollars and US Treasury bonds as protection. This increase in demand increases the value of the dollar against practically all other currencies, especially emerging ones such as the Brazilian real.
How does the Central Bank interfere in the exchange rate?
The Central Bank of Brazil (BCB) operates in the foreign exchange market through auctions of foreign exchange swaps (financial instruments that increase or reduce the supply of dollars), direct sales of dollars from international reserves and line operations (loans of dollars to banks). The objective is not to fix the exchange rate, but to reduce excessive volatility. Brazil has a floating exchange rate regime — the BCB does not have a defined exchange rate target.
What is PTAX and how does it affect contracts and investments?
PTAX is the official exchange rate calculated by the Central Bank of Brazil, published daily after 1 pm. It is the weighted average of the day's interbank foreign exchange market transactions. It is used as a reference in dollar futures contracts (B3 market), adjustment of exchange-indexed debts, calculation of IOF in foreign exchange operations and conversion of values in financial statements. Many international financing contracts use the settlement day PTAX.