Compound annual growth rate (CAGR) smooths a total gain over several years into a single steady yearly rate, which makes it the fairest way to compare investments or business metrics that grew over different time spans. Enter the starting value, the ending value and the number of years, and this calculator applies the standard formula, the end value divided by the start value, raised to the power of one over the number of years, minus one. The result is shown as a percentage along with the total growth over the whole period so you can see both the headline number and the underlying change. Use it for a stock, a fund, revenue, users or any figure that compounds. Everything is worked out locally in your browser with nothing sent anywhere.