24 Calk24

Interest Calculator

Calculate interest and compound interest for your investment. With monthly or annual compounding and savings rates.

Updated 2025 Data stays local

Final capital

16.288,95 €

Eingezahlte Summe

10.000,00 €

Erhaltene Interest

6.288,95 €

JahrKontostandEinzahlungenZinsen
110.500,00 €10.000,00 €500,00 €
211.025,00 €10.000,00 €1.025,00 €
311.576,25 €10.000,00 €1.576,25 €
412.155,06 €10.000,00 €2.155,06 €
512.762,82 €10.000,00 €2.762,82 €
613.400,96 €10.000,00 €3.400,96 €
714.071,00 €10.000,00 €4.071,00 €
814.774,55 €10.000,00 €4.774,55 €
915.513,28 €10.000,00 €5.513,28 €
1016.288,95 €10.000,00 €6.288,95 €

Note: These calculations are for informational purposes only and do not replace professional tax or financial advice. All information without guarantee.

Frequently Asked Questions

How does compound interest work?

Compound interest means that interest earned is added to the principal, and future interest is calculated on the larger amount. Over time, this creates exponential growth often called the "snowball effect."

How do I calculate interest on a deposit?

Simple interest: Principal times rate times time divided by 100. For compound interest, use the formula: Final amount equals Principal times (1 + rate/100) raised to the power of years.

What is the Interest Calculator?

The interest calculator computes interest income and final capital for investments with compound interest. Regular savings contributions can optionally be included.

How does the Interest Calculator work?

Enter the initial capital, interest rate and investment period. The calculator computes the final capital with compound interest. For savings plans the annuity formula is applied. Optionally, flat-rate tax less the saver lump sum is considered.

Key Data and Facts

Flat-rate tax: 26.375% (incl. solidarity surcharge). Saver lump sum: 1,000 euros/person. Deposit guarantee: 100,000 euros per customer and bank.

Related Calculators