The savings calculator provides you with an initial overview of the best way to reach your savings goals. You can use it to work out the capital you need, the required term or the savings rate. You can also calculate whether past investments actually delivered the desired interest rate.
You can use it to calculate the initial capital, final capital, savings rate, term or interest rate.
In this case you have to estimate one of the parameters, e.g. the interest rate. The calculator can deliver results only if you input four of the five parameters.