Compound Interest Calculator
See how your savings or investment grows over time with the power of compound interest.
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What is Compound Interest?
Compound interest is interest calculated on both the initial principal and the accumulated interest. Unlike simple interest, compound interest grows exponentially — the longer you invest, the faster your money grows. Use loancalcfree.com to see the impact.
The Compound Interest Formula
A = P(1 + r/n)^(nt) + PMT × [((1+r/n)^(nt) - 1) / (r/n)], where P is principal, r is annual rate, n is compounding frequency, t is time in years, and PMT is monthly contribution.