Compound Interest Calculator

Free Compound Interest Calculator

Albert Einstein is reputed to have said, "Compound interest is the eighth wonder of the world. He who understands it, earns it... he who doesn't... pays it." Our free compound interest calculator helps you discover how your investments can grow over time through the power of compounding.

What is Compound Interest?

Compound interest is the interest on a deposit or loan calculated based on both the initial principal and the accumulated interest from previous periods. In simple terms, it is "interest on interest," which makes a sum grow at a faster rate than simple interest, which is calculated only on the principal amount.

How to use this calculator

Follow these simple steps to calculate your returns:

1. Principal Amount: Enter your initial investment or deposit amount.
2. Annual Interest Rate: Enter the yearly interest rate you expect to earn.
3. Time Period: Specify how many years you plan to keep the money invested.
4. Compounding Frequency: Choose how often the interest is added to your principal (Annually, Semi-Annually, Quarterly, or Monthly). More frequent compounding leads to slightly higher total returns.

Why Compounding Frequency Matters

The frequency of compounding refers to the number of times interest is calculated and added to the principal in a year. The more frequently interest is compounded, the higher the total amount will be at the end of the term.

• Annually: Interest is calculated once a year (1 time).
• Semi-Annually: Interest is calculated twice a year (2 times).
• Quarterly: Interest is calculated every three months (4 times).
• Monthly: Interest is calculated every month (12 times).