How to use the currency converter
Compare commercial, daily PTAX and tourism references with source and date. The tool estimates costs and does not execute financial transactions.
Step by step
- Enter amount and choose source and target currencies.
- Select market, daily PTAX or provider tourism; check buy, sell and date.
- To estimate buying foreign currency with BRL, choose tourism cost simulation and enter additional spread, IOF and fixed fee.
Calculation method
PTAX uses the BCB’s daily all-currency file. Cross buy rate divides source buy by target sell; cross sell divides source sell by target buy. Market data uses direct or cross provider pairs with up to one-minute caching.
Assumptions and limitations
Frequency varies by source and currency. Published tourism has specific coverage and is not an identified institution’s offer; tax and fee inclusion requires confirmation. Cost simulation is separate, starts with zero assumed costs and does not assign one IOF rate to every transaction. Last valid rates and dates are retained when updates fail.
Common questions
Are all currencies real time?
No. Official references are daily. Market data has caching and provider schedules. Every value shows its source and date.
Is this a Revolut rate?
No. Results identify the sources. Any future partnership requires its own terms and approval.