Compound interest calculator

Choose a fund, enter amounts and see what compound interest gives

Where do you invest?

The 500 largest US companies. Historical average ~10% per year (1957–2025, dividends reinvested).

Starting amount€Monthly savings€

Period

years

Jag ökar sparandet varje årE.g. when my salary rises — I save more every year

Final amount in 20 years78 553 €

If you start with 1 000 € and save 100 € every month, you will have 78 553 € in 20 years.
Of that, compound interest has earned you 53 553 €.

Your deposits25 000 €

Growth from compound interest53 553 €68% of the final amount

Each euro grew to3,14 €

At the end of year 2078 553 €deposits 25 000 € · growth 53 553 €

Starting amountMonthly savingsGrowth from compound interest

If the return were 2 percentage points lower or higher (8 %–12 % per year): 61 561 € – 100 767 €

Year by year

Year	Monthly savings	Total deposits	Total growth	Value
1	100 €	2 200 €	154 €	2 354 €
2	100 €	3 400 €	444 €	3 844 €
3	100 €	4 600 €	882 €	5 482 €
4	100 €	5 800 €	1 484 €	7 284 €
5	100 €	7 000 €	2 267 €	9 267 €
6	100 €	8 200 €	3 247 €	11 447 €
7	100 €	9 400 €	4 446 €	13 846 €
8	100 €	10 600 €	5 885 €	16 485 €
9	100 €	11 800 €	7 587 €	19 387 €
10	100 €	13 000 €	9 580 €	22 580 €
11	100 €	14 200 €	11 892 €	26 092 €
12	100 €	15 400 €	14 555 €	29 955 €
13	100 €	16 600 €	17 605 €	34 205 €
14	100 €	17 800 €	21 080 €	38 880 €
15	100 €	19 000 €	25 022 €	44 022 €
16	100 €	20 200 €	29 478 €	49 678 €
17	100 €	21 400 €	34 500 €	55 900 €
18	100 €	22 600 €	40 144 €	62 744 €
19	100 €	23 800 €	46 472 €	70 272 €
20	100 €	25 000 €	53 553 €	78 553 €

The return is an estimate based on historical averages, not a promise — the market fluctuates and individual years can bring large losses. The calculation assumes returns are added monthly and deposits are made at the end of each month. Tax and fund fees are not included. This is not investment or tax advice.

The calculator shows amounts before tax and fees. This is not investment or tax advice.