CAGR Calculator

The CAGR Calculator computes the Compound Annual Growth Rate, the smoothed annual rate at which an investment would have grown if it increased at a steady pace over a number of years. It uses the formula CAGR = (ending value / beginning value)^(1/years) - 1, turning a lumpy real-world return into a single comparable percentage. CAGR is the standard metric for describing how investments, revenue, or any quantity grew over a multi-year span.

Because CAGR mathematically removes the volatility of year-to-year swings, it answers the question of what constant rate would have produced the same final result. An investment that doubled over five years has a CAGR of about 14.9%, regardless of whether it surged early and stalled late or grew evenly. This makes CAGR ideal for comparing two investments with different starting points, time frames, or volatility profiles on equal footing.

Investors use this tool to evaluate fund or stock performance, while business analysts apply it to revenue, user counts, or market size growth. It is closely related to the Future Value Calculator, which runs the logic in reverse to project a balance forward at an assumed rate, and to the APY Calculator for shorter-term yield comparisons. Reporting growth as CAGR is far more honest than quoting a single total return without context of how many years it took.

A practical caution: CAGR hides the path taken, so it does not reveal the risk, drawdowns, or volatility along the way. Two investments can share the same CAGR while one was a smooth climb and the other a terrifying rollercoaster. Always pair CAGR with a look at the actual year-by-year returns before drawing conclusions, and be wary when very short periods are annualized into impressively large rates.