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Saving & investing

Interest calculator

What does a one-off investment earn at a given interest rate? Compare simple and compound interest with different crediting intervals.

Your details

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Result

Final balance
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Total interest
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Effective annual rate
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Year by year
YearInterest to dateBalance

The results are non-binding estimates for guidance only and do not replace tax, legal or investment advice. What counts are your payslip, your tax assessment (Steuerbescheid) and the terms of your contracts.

How it is calculated

With compound interest: final balance = investment amount × (1 + rate ÷ n)^(n × years), where n is the number of interest credits per year. Without compound interest: final balance = investment amount × (1 + rate × years).

The more often interest is credited, the higher the effective annual rate. Taxes are not taken into account.

Frequently asked questions

Are my savings safe?

Deposits with banks in the EU are protected up to €100,000 per customer and bank by the statutory deposit guarantee scheme.

Mahdi Barzkar

Contact and content responsibility

Mahdi Barzkar

Owner and insurance broker authorised under section 34d(1) of the German Trade Regulation Act · Register number D-H3YB-K7WLO-18.

Legal and register details (German)

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