Compound Interest Calculator
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
About this tool
Fórmula clássica de juros compostos com aportes mensais:M = P × (1 + i)n + PMT × [((1+i)n − 1) / i]
Para comparar com produtos reais: CDB 100% CDI rende aproximadamente a Selic. IR regressivo no Tesouro/CDB: 22,5% (até 180d), 20% (181–360d), 17,5% (361–720d), 15% (> 720d). LCI/LCA são isentos.
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Investment disclaimer
Simulations are informational and based on publicly available rate tables. They do not constitute investment advice, a securities offering or regulated financial consulting under SEC and FINRA rules (US) or MiFID II and ESMA guidelines (EU). Past performance does not guarantee future returns. Consult a licensed financial professional (CFP, CFA, RIA in the US; MiFID-authorized adviser in the EU) or your bank before making final decisions.
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