Online calculator — enter the values and get the result instantly, with the formula and a worked example.
FV = future value
i = interest rate
n = number of compounding periods
A regular-savings calculator estimates the future value of money you set aside at fixed intervals, such as a monthly or yearly deposit that earns interest. Instead of looking at a single lump sum, it treats saving as a habit: each contribution is added to the balance and then grows alongside everything you put in before it. Because earlier deposits have more time to earn interest, they compound the most, which is why starting early matters so much. The two biggest drivers of the result are how much you contribute and the interest rate, but the number of periods quietly does a lot of the heavy lifting through compounding.
People use this tool to plan for concrete goals like a house deposit, a child's education, an emergency fund, or a comfortable retirement. It makes the payoff of consistency visible, turning small, almost painless amounts into a surprisingly large total over many years. It is also handy for comparing scenarios, for example whether a slightly higher deposit or a better interest rate gets you to your target faster. Seeing the projected sum can be genuinely motivating, and it helps you decide realistically how much to save each month.
Saved amount
–
Blue = with interest, grey = deposits only
We regularly save 1000 Euros annually. We assume an interest rate of 3% and want to save for 20 years.
We calculate the final value as follows: 1000 * (((1+0.03)^20) - 1) / 0.03 = 1000 * ((1.03^20) - 1) / 0.03 = 1000 * (1.81 - 1) / 0.03 = 1000 * (0.81 / 0.03) = 26870.37
Therefore, the saved amount after 20 years is 26,870.37 Euros.