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Compound Interest Calculator

See how savings grow with compound interest from a starting amount, annual rate, number of years and compounding frequency.

%
Final balance1,647.01
Interest earned647.01

Calculated in your browser — nothing is uploaded.

Every calculation runs in your browser — no data is sent anywhere.

Comment ça marche

01
Enter the numbers
02
See the result update live
03
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Questions fréquentes

What is compound interest?

Interest that is added to the balance so it earns interest too. More frequent compounding (monthly vs yearly) grows the balance faster. This calculator uses your starting amount only, with no regular contributions.

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Non. Cet outil s'exécute entièrement dans votre navigateur. Vous pouvez ouvrir l'onglet réseau de votre navigateur et vérifier qu'aucune requête ne transporte votre fichier.