Compound Interest Calculator

Estimate the compound interest on savings, a deposit or an investment — enter the principal, annual rate, term and compounding frequency, and see the maturity value and total profit at once. All the maths happens in your browser.

Principal amount (PKR) Annual interest rate (%) Term (years) Compounding — how many times a year?

Maturity Value

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Total Interest / Profit

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Formula: A = P × (1 + r/n)^nt — where P is the principal, r is the annual rate, n is the number of times compounding happens in a year, and t is the years.

How to Use

Enter the principal amount you are investing or saving.
Enter the annual rate and the term.
Choose the compounding frequency — monthly compounding gives a slightly higher maturity value.
Press Calculate — the maturity value and total profit will appear at once.

Frequently Asked Questions

What is the difference between compound interest and simple interest?

Simple interest applies only to the principal, while compound interest also applies to the profit earned before — so over a long term, compound interest grows more.

Example: 100,000 PKR, 10% a year, 5 years — what is the maturity value?

With yearly compounding, the maturity value is 161,051 PKR and the total profit is 61,051 PKR (100,000 × 1.10⁵ = 161,051).

Is this result final or an estimate?

This is an estimate — the final amount may be a little different because of the bank or scheme's charges, tax and real compounding schedule. Confirm with the bank or scheme before deciding.