Investment calculator
Where do you invest?The 500 largest US companies. Historical average ~10% a year (1957–2025, dividends reinvested).
Period
yrs
Final amount after 20 years150 379 €
If you put in 1000 € up front and 200 € a month, you'll have 150 379 € after 20 years.
Compound interest earns 101 379 € of it for you.
Your contributions49 000 €
Compound growth101 379 €67% of the final amount
Each euro grew to3,07 €
End of year 20150 379 €contributions 49 000 € · growth 101 379 €
Initial investmentMonthly contributionsCompound growth
If the return were 2 percentage points lower or higher (8%–12% a year): 118 461 € – 191 889 €
Year by year
| Year | Monthly | Total contributions | Total growth | Value |
|---|---|---|---|---|
| 1 | 200 € | 3400 € | 208 € | 3608 € |
| 2 | 200 € | 5800 € | 677 € | 6477 € |
| 3 | 200 € | 8200 € | 1433 € | 9633 € |
| 4 | 200 € | 10 600 € | 2504 € | 13 104 € |
| 5 | 200 € | 13 000 € | 3923 € | 16 923 € |
| 6 | 200 € | 15 400 € | 5723 € | 21 123 € |
| 7 | 200 € | 17 800 € | 7944 € | 25 744 € |
| 8 | 200 € | 20 200 € | 10 626 € | 30 826 € |
| 9 | 200 € | 22 600 € | 13 817 € | 36 417 € |
| 10 | 200 € | 25 000 € | 17 567 € | 42 567 € |
| 11 | 200 € | 27 400 € | 21 931 € | 49 331 € |
| 12 | 200 € | 29 800 € | 26 973 € | 56 773 € |
| 13 | 200 € | 32 200 € | 32 758 € | 64 958 € |
| 14 | 200 € | 34 600 € | 39 362 € | 73 962 € |
| 15 | 200 € | 37 000 € | 46 866 € | 83 866 € |
| 16 | 200 € | 39 400 € | 55 361 € | 94 761 € |
| 17 | 200 € | 41 800 € | 64 945 € | 106 745 € |
| 18 | 200 € | 44 200 € | 75 728 € | 119 928 € |
| 19 | 200 € | 46 600 € | 87 828 € | 134 428 € |
| 20 | 200 € | 49 000 € | 101 379 € | 150 379 € |
The return is an estimate based on historical averages, not a promise — stock markets fluctuate and individual years can be deeply negative. The calculation compounds monthly and assumes contributions at the end of each month. Taxes and fund fees are not included. This is not investment advice.