Compound Interest Calculator

See how fast your money can grow with the power of compounding.

Unlock the Power of Compound Interest

Compound interest is often called the eighth wonder of the world because your money earns not only on the original principal, but also on the interest already added. Even modest contributions, when left to compound, can snowball into substantial wealth.

Why Use Our Calculator?

  • Instant Projections — Discover how different rates, periods and compounding frequencies change your outcome.
  • Multiple Currencies — View results in 11 major global currencies for easy comparison.
  • Date-to-Date Precision — Calculate exact growth between any two calendar dates, including leap-year adjustments.
  • Daily to Yearly Compounding — Explore how switching from yearly to monthly or daily compounding accelerates returns.
  • Mobile Optimised — Lightweight, responsive design loads fast on any device.

How to Interpret the Results

The Future Value shows what your principal could become after the selected period, while Total Interest isolates the gain produced purely from compounding. Use these insights to decide whether to reinvest dividends, adjust contribution schedules, or refinance loans.

Practical Applications

  1. Long-Term Investing: Project retirement savings with monthly deposits.
  2. Education Planning: Estimate how a child’s college fund grows over 18 years.
  3. Loan Comparisons: Weigh fixed vs variable interest offers by comparing accumulated totals.
  4. Emergency Fund: Calculate interest earned on a high-yield savings account over short periods.

Expert Tip: Start Early & Watch Time Work for You

Because compound growth is exponential, time in the market beats timing the market. Small, consistent contributions beginning today will generally outperform larger, sporadic deposits that start years later.

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