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Investment Calculator

Calculate how your lump sum investment grows over time with compound interest. Project future value for any investment amount and rate.

Financial Calculators
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Let Your Money Do the Heavy Lifting

Leaving your savings in a traditional bank account is one of the easiest ways to silently lose money. Thanks to inflation, the buying power of idle cash shrinks every single year.

To actually build wealth, your money needs to work for you. Whether you are throwing a chunk of cash into an index fund, buying bonds, or investing in real estate, this tool shows you exactly how much an initial lump-sum investment will grow over decades.

The Reality of Compounding

The human brain naturally thinks in straight lines-but investing works on an exponential curve. That's why seeing the actual numbers laid out makes such a huge impact.

If you invest $10,000 at a 10% return for 30 years, you don't just make $30,000 in interest. Because that interest keeps piling on top of itself, you walk away with over $170,000. This calculator is designed to visually prove why getting started early is the ultimate financial cheat code.

Frequently Asked Questions

The SIP calculator is designed for people who want to invest a little bit of money every single month. This Investment Calculator is for people who have one giant lump sum of cash right now, and want to drop it in an account and never touch it again.

It depends entirely on where you put the money. A high-yield savings account might give you 4% to 5%. Historically, investing in a broad stock market index (like the S&P 500) has returned roughly 10% on average over the long haul.

No, this calculator gives you the raw mathematical return. To rough out your real 'buying power', some people subtract average inflation (around 3%) from their expected return. So instead of typing in 10%, they might type in 7%.

Imagine a snowball rolling down a hill. In year one, your $100 earns $10. Now you have $110. In year two, you earn 10% on the bigger $110, throwing off $11 in interest. By year twenty, the snowball is so massive that the interest payments are larger than your original investment.

Not at all. The calculator uses pure, perfect math, but the real world is messy. Stock market returns jump up and down wildly from year to year. Treat these numbers as a very solid long-term estimate, not a guaranteed contract.

Completely. We don't track you, we don't save your financial numbers, and all the math happens locally inside your browser window. Total privacy.

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