RISK & PLANNING TOOL

Compound Growth Calculator

Project a balance with recurring contributions and an annual return assumption.

Inputs

Update any value to recalculate.

Results

Calculated from the values above.

Ending balance
$114,279.24
Total contributions
$60,000.00
Growth
$44,279.24

Methodology

This illustration assumes a steady return and contributions made at the end of each contribution period. It is not a forecast.

How this calculator works

Use it to illustrate how starting balance, regular contributions, and a hypothetical return interact over time.

How to use it

Use a conservative hypothetical return and a realistic contribution schedule. Compare multiple return assumptions because compounding magnifies both the contribution plan and the assumption; it does not model uneven market returns or withdrawals.

Formula, payoff, and assumptions

The projection compounds the balance at the selected frequency and adds recurring contributions at period end.

The projection applies a steady hypothetical return. Real returns vary, contributions may not be invested immediately, and no tax, fee, withdrawal, or drawdown assumptions are included.

Practical example

Starting with $10,000, adding $500 monthly, and assuming 8% annually produces an illustrative ten-year projection.

Reading this result

Compare several return assumptions and contribution schedules. Over long periods, the contribution plan can be as influential as the return assumption in the displayed ending balance.

Common planning mistake

Do not read the projection as a likely account path. Real returns arrive unevenly, and drawdowns, taxes, fees, withdrawals, and missed contributions can materially change the result.

Risk and limitations

Returns are not steady in real markets. This is an illustration, not an investment forecast.