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Compound Interest Calculator

Find how investments grow with compound interest.

CALCULATE

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Formulas

A = P(1 + r/n)nt

P = principal, r = rate, n = compounds/year, t = years

Compound Interest

Rule of 72: divide 72 by annual rate to estimate doubling time. At 7%, money doubles in ~10.3 years. €10,000 at 7% for 30 years = €76,123.

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