Calculate financial freedom

For some years now, the word frugality has been gaining in importance.

Financial freedom is an increasingly common dream of young people in particular, who want to enjoy life to the full as early as possible.
The aim is to find out how to set up one's savings behavior in order to achieve a desired goal (e.g. financially free at the age of 40).
In addition, there is a calculator to calculate the required savings rate for a specific financial goal (e.g. car purchase).

It is always important to take into account that circumstances can change constantly and information such as an expected return with many dependencies (eg when investing money on the stock markets of price fluctuations) are subject.