Selic, CDI and a compound-interest calculator
See today's Brazilian Selic and CDI rates, straight from the Central Bank, and simulate what an amount earns in compound interest over the term you choose. Free, no sign-up.
Selic, CDI and compound yield calculator
The daily rate comes from the Central Bank. On top of it, simulate how much a value yields in compound interest: enter the amount, the rate and the term and see the total, the interest and the effective rate.
Frequently asked
How do I calculate what 100% of CDI earns?
CDI tracks the Selic closely. For 12 months, the approximate return is the invested amount multiplied by (1 + the CDI rate) raised to 1 year. The tool converts the annual rate to monthly and compounds month by month.
Is the shown return net of tax?
No. The calculation shows the gross return, without deducting income tax or management fees. In Brazilian fixed income, income tax is regressive: it starts at 22.5% and falls to 15% as the term lengthens.
Is the tool's rate the same as my bank's?
The Selic and CDI shown are the official rates of the moment. Each investment applies a percentage of CDI (for example, 100% or 110%), which you enter in the rate field to simulate your case.
This is the pocket version
The tool above solves one calculation. What I do under contract is keep it running inside your system, on your data, with nobody typing anything.