Investment Calculator
How a starting amount plus monthly contributions grows over time. Shows total contributed, earnings, a year-by-year table and the value in today's dollars.
Result
Future value
$292,465.03
- In today's dollars
- $178,482.91
- Total contributed
- $130,000.00
- Investment earnings
- $162,465.03
Growth by year
| Year | Total contributed | Balance |
|---|---|---|
| 1 | $16,000.00 | $16,890.15 |
| 2 | $22,000.00 | $24,262.61 |
| 3 | $28,000.00 | $32,151.14 |
| 4 | $34,000.00 | $40,591.87 |
| 5 | $40,000.00 | $49,623.45 |
| 10 | $70,000.00 | $105,197.38 |
| 15 | $100,000.00 | $183,142.70 |
| 20 | $130,000.00 | $292,465.03 |
Common questions
How do I estimate investment growth over time?
Enter your initial amount, monthly contribution, expected annual return, and time horizon. The calculator applies compound growth to show your projected balance.
What rate of return should I assume for investments?
The S&P 500 has historically returned about 10% annually before inflation (7% after). Use 6–8% for a moderate estimate, or 4–5% for conservative planning.