OONOONN

Compound interest

Project balance growth with regular contributions.

6
Automatic

Enter known values

Fill in the fields below — the result will appear alongside.

P
r
t
Yearly
Yearly
Beginning of period

Formulas

A=P(1+rn)ntA=P(1+\frac rn)^{nt}

How it works

Simulate compounding and contributions period by period, including beginning- or end-of-period deposits, and inspect a yearly growth chart.

The engine applies each contribution and compounding event chronologically. Values are rounded only for display.

Examples

Five-year monthly plan{"annualRate":6,"compoundsPerYear":12,"contribution":200,"contributionFrequency":12,"contributionTiming":"end","principal":10000,"years":5}