Calculate the necessary initial systematic investment size to accumulate a real purchasing power of 100.000.000 €.
100.000.000 € is the nominal goal. At Europe's 2.5% inflation default, 100.000.000 € in 25 years has the same purchasing power as €53,94M today — that gap is exactly why this calculator solves for nominal AND real targets, not just nominal.
Two ways to reach 100.000.000 €: a flat SIP held constant in nominal terms (loses real value each year), or a step-up SIP that rises with inflation (keeps your real savings rate constant). The table below shows what monthly SIP is required for each path across five common horizons.
| Horizon | Flat SIP / month | Total invested (flat) | Step-up SIP / month (start) | Total invested (step-up) |
|---|---|---|---|---|
| 10 yrs | €542,99K | €65,16M | €492,55K | €66,22M |
| 15 yrs | €287,07K | €51,67M | €248,99K | €53,58M |
| 20 yrs | €168,65K | €40,48M | €140,74K | €43,14M |
| 25 yrs | €104,45K | €31,34M | €84,35K | €34,58M |
| 30 yrs | €66,65K | €24M | €52,36K | €27,59M |
Assumes 8% expected annual return and 2.5% step-up rate on the step-up column. Longer horizons let compounding do more of the work — the required monthly SIP for 30 years is typically a small fraction of the 10-year requirement, but the total invested rises because you contribute for longer.
We solve for the required initial Systematic Investment Plan (SIP) contribution:
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