Ultimate Guide to Calculating Compound Interest

Compounding is often called the 8th wonder of the world. In this guide, we explore the best practices for calculating compound interest to help you plan your investments better.

Simple vs Compound Interest

Simple interest is calculated only on the principal, while compound interest is calculated on the principal PLUS the accumulated interest from previous periods.

The Formula

The standard formula for compounding is: A = P(1 + r/n)^(nt) Where:

• A = final amount
• P = principal
• r = interest rate
• n = number of times interest compounds per year
• t = time in years

Why it matters

For Indian investors, compounding is the key to retirement planning through SIPs (Systematic Investment Plans) or long-term Fixed Deposits.

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