Compound interest calculator
Simulate how a starting amount and monthly deposits grow over time. The rate starts at Brazil's Selic rate today and you can change everything; the chart shows your money versus earnings.
- Final amount
- $52,297
- Total invested
- $25,000
- Earnings
- $27,297
Simplified simulation: constant rate, no taxes, no fees and no inflation. It's a sum to understand the effect of time, not a recommendation.
Frequently asked questions
What is the compound interest formula?
Final amount = principal × (1 + rate)^time. With monthly deposits, each deposit is added to the balance, which keeps earning on everything already accumulated.
Does it include taxes and inflation?
No. It's a simplified calculation with a constant rate and no taxes, fees or inflation, to understand the effect of time. It is not investment advice.
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Concepts