What is the CAGR of an investment that doubled in 6 years?

An investment that doubles in 6 years has a CAGR of about 12.25%.

6 years

What is CAGR?

CAGR (Compound Annual Growth Rate) is the constant annual rate at which a single investment would need to grow to go from its beginning value to its ending value over a given period — it assumes one entry and one exit, unlike XIRR which handles multiple cash flows.