Compound Intérêt

Future value avec contributions; savings-goal solver

About this tool

Compound interest with optional periodic contributions, plus a "savings goal" inverse: how long / how much to reach a target.

Inputs

  • Principal, contribution per period, annual rate, years.
  • Compounding frequency (annual, monthly, daily, continuous).

Formula

FV = P (1 + r/n)nt + C · ((1 + r/n)nt − 1)/(r/n) for periodic compounding; FV = P · ert for continuous.