CAGR Calculator

The compound annual growth rate (CAGR) tells you the smooth, average yearly rate at which an investment grew over a period, as if it had increased at the same steady pace every year.

Because it annualizes returns, CAGR is the fairest way to compare investments held for different lengths of time, removing the distortion of volatile year-to-year swings.

Enter the value at the start of the period, the value at the end and the number of years between them.

The calculator divides the ending value by the beginning value, raises the result to the power of one over the number of years, then subtracts one.

The output is a single annualized growth percentage.

CAGR = (Ending / Beginning)^(1 / years) − 1

CAGR assumes profits are reinvested and growth compounds each year.

It is a representative rate, not the actual return of any single year.

• Growing $10,000 to $25,000 over 5 years equals a CAGR of about 20.1%.
• The same total gain over 10 years would show a much lower CAGR, highlighting why time matters.

• Compare investments held for different periods.
• Smooth out volatile annual returns.
• Express long-term performance in one number.
• Set realistic future growth expectations.

To get reliable results from the CAGR Calculator, take a moment to gather accurate, up-to-date figures before you start. Small differences in the inputs you enter — an interest rate, a time horizon, or a contribution amount — can lead to meaningfully different outcomes, so it pays to be precise.

Treat the calculator as a planning aid rather than a crystal ball. Run several scenarios — an optimistic case, a conservative case, and something in between — so you understand the range of possibilities instead of fixating on a single number. Revisit your numbers periodically as your circumstances, rates, and goals change.

• Double-check that rates are entered as annual figures unless stated otherwise.
• Compare best-case and worst-case scenarios, not just the average.
• Account for fees, taxes and inflation where they apply to your situation.
• Re-run the numbers whenever your income, rates or goals change.

The most common error people make with any investments calculator is entering inconsistent units — for example mixing monthly and annual figures, or confusing a nominal rate with an effective one. Read each field label carefully so your inputs line up.

Another frequent pitfall is treating a single estimate as a guarantee. Real-world results are shaped by factors a calculator cannot fully capture, including changing rates, fees, taxes and your own eligibility. Use the output as a well-informed estimate and confirm important decisions with a qualified professional.

The CAGR Calculator turns a handful of inputs into a clear, actionable result so you can plan with confidence. By understanding the formula behind it, experimenting with different scenarios, and avoiding the common mistakes above, you can use this investments tool to make smarter, better-informed money decisions.

Remember that every result is an estimate for educational purposes. Pair what you learn here with the related calculators and guides on this page to build a fuller picture of your finances.