We see 2 independent calculators below, one for savings and one for passive income. With the savings plan calculator on the left you can find out how to get the necessary capital for a passive income. The calculator on the right shows how much capital you need for a monthly passive income. The explanation of the individual fields can be found under the computers.

Interest rate in %Yearly return of the investment
Payment each monthMonthly deposit or payout, respectively
YearsDuration of the savings or withdrawal period
Final capitalFinal capital from savings plan
Seed capital neededNecessary capital for the demanded withdrawal plan