Investment Growth Calculator
Model compound growth with custom, Roth IRA, or 401k contribution strategies
Custom
Max Roth IRA
Max 401k
Initial investment
$10,000
Monthly contribution
$200 / mo
Roth IRA contribution (2026)
$7,500 / yr → $625 / mo
+$500/yr each year · 2027: $8,000 · 2028: $8,500 · ...
401k contribution (2026)
$24,500 / yr → $2,042 / mo
+$1,000/yr each year · 2027: $25,500 · 2028: $26,500 · ...
Compounding frequency
Annually
Monthly
Daily
Years
20 years
Annual return rate
Near-term rate
Yrs 1–3
10.5%
Near-term duration
3 years
then transitions to
Long-term rate
7.5%
Final balance
—
Total contributed
—
Est. market returns
—
Est. market returns
Contributions
Initial principal
Near-term period