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Quickly find how much your money earns with compound interest. Because knowing your numbers means owning your financial future.

Compound Interest Calculator

📘 What is Compound Interest?

Compound Interest (CI) is the interest calculated on the initial principal and also on the accumulated interest from previous periods. This means your money grows at a faster rate compared to simple interest.

🔢 Formula:

CI = P × ( (1 + r/n)n×t ) – P

  • P = Principal Amount (initial money)
  • r = Annual Interest Rate (in decimal, e.g. 10% = 0.10)
  • n = Number of times interest is compounded per year (e.g. 1, 4, 12)
  • t = Time (in years)

🧮 Example:

If you invest ₹10,000 at 10% annual interest rate, compounded yearly, for 3 years:

A = 10,000 × (1 + 0.10/1)1×3 = 10,000 × (1.1)3 = ₹13,310
Compound Interest = A – P = ₹13,310 – ₹10,000 = ₹3,310

✨ Why Compound Interest is Powerful?

  • Your money grows faster over time due to the interest-on-interest effect.
  • The longer you invest, the more powerful compounding becomes.
  • It is often called the "8th wonder of the world" because of its wealth-building potential.