Compound Interest Calculator
Calculate how investments grow with compound interest over time.
Use Calculator →Investment growth, ROI, and retirement planning tools
This collection of investment and retirement calculators helps you plan your financial future with confidence. The Compound Interest Calculator shows how your money grows over time with configurable compounding frequencies — daily, monthly, quarterly, or annually — and lets you add regular contributions to see their long-term impact. The Investment ROI Calculator helps you evaluate the true return on any investment by accounting for initial cost, final value, dividends, and holding period. The Retirement Calculator projects whether your current savings rate will meet your retirement goals, factoring in expected returns, inflation, and desired retirement income. The Targeted Savings Calculator works backward from a goal amount and deadline to determine exactly how much you need to save each month.
All four calculators run entirely in your browser, ensuring your financial data never leaves your device. No account is required, no information is stored, and no data is transmitted to any server. The tools use standard financial formulas — the same mathematics used by banks, brokerages, and certified financial planners. You can experiment freely with different scenarios: adjust interest rates, change contribution amounts, compare time horizons, or test different retirement ages. Each calculator produces clear results with charts and breakdowns, making it easy to understand how each variable affects your financial outcome.
Calculate how investments grow with compound interest over time.
Use Calculator →Calculate your rate of return on any investment — ROI percentage, annualized returns (CAGR), and net profit analysis.
Use Calculator →Plan your retirement savings and check if you're on track.
Use Calculator →Find your savings contribution, timeline, or achievable goal. Multiple frequencies, inflation adjustment, and quick presets.
Use Calculator →