Finance & Economics / Personal Finance
Compound Interest Calculator with Variable Contributions
Formula
FV = P(1 + r/n)^(nt) + PMT × [((1 + r/n)^(nt) - 1) / (r/n)]
Where:
• P = Principal amount
• r = Annual interest rate (decimal)
• n = Compounding frequency per year
• t = Time in years
• PMT = Regular contribution amount
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