📈 Investment Calculator
Lump sum + periodic contributions
How to Use This Calculator
1
Enter Initial and Contribution
Starting balance and amount added each period.
2
Enter Rate, Years, Frequency
Annual return, timeline, and contribution frequency.
Formula
FV = P(1+i)^n·t + c·[((1+i)^n·t − 1)/i]
i = r/n, contributions assumed end-of-period
Frequently Asked Questions
Are contributions monthly or annual?
Choose the frequency to match how often you add money.
Are returns guaranteed?
No, returns are assumptions; actual results vary.