Compound Interest Calculator

Discover how small, consistent investments can grow into significant wealth over time using the mathematical power of compound interest.

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The Math Behind It

FV = P*(1+r/n)^(n*t) + PMT*((1+r/n)^(n*t)-1)/(r/n)

The formula considers two parts: the principal (initial investment) compounding over time, and the future value of a series of monthly contributions.

Example

If you invest $10,000 today at a 7% annual return, compounded monthly, and add $500 each month for 10 years, you'll end up with approximately $106,300.

Official Sources & Validity

Calculations verified against current legislation.

Central Bank of Brazil (BACEN)
CMN Resolutions
Applied Financial Mathematics
Valid for: Global Standard

Frequently Asked Questions

Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods.

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