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C

Investment Calculator

Grow a lump sum with periodic contributions.

Investment

Projected balance · Total contributed over 21 points$0$100,000$200,000$300,000$400,000Year 0Year 3Year 7Year 10Year 13Year 17Year 20
  • Projected balance
  • Total contributed

Monte Carlo — range of outcomes

Markets don't return 8% smoothly — here's the distribution of possible endings.

Run the simulation to see the range.

Future value
$343,778
Total contributed
$130,000
Earnings
$213,778

About the Investment Calculator

MethodologyHome

An investment calculator projects how a lump sum plus regular contributions grow at a chosen rate of return. Use Monte Carlo mode to see the distribution of likely outcomes given return volatility.

Formula

FV = P(1+r)^n + PMT × ((1+r)^n − 1)/r
  • FV = Future value
  • P = Initial investment
  • PMT = Recurring contribution
  • r = Periodic return
  • n = Number of periods

Frequently asked questions

Should I invest a lump sum or dollar-cost average?

Historically, lump-sum investing has outperformed DCA about two-thirds of the time because markets trend upward. DCA reduces regret and smooths entry during volatile periods.

Concepts