CAGR Calculator
Calculate compound annual growth rate, final value, or time needed
Frequently Asked Questions
CAGR = (Final value ÷ Initial value)^(1 / years) − 1, expressed as a percentage. It's the single steady annual growth rate that would take the starting value to the ending value over that period.
A simple average of yearly returns can overstate real growth because it ignores compounding and the effect of losses (a -50% year needs a +100% year just to break even, not +50%). CAGR reflects the actual compounded path from start to finish.
No — CAGR assumes a single lump sum with no additions or withdrawals along the way. If you're adding regular contributions, use a compound interest or annuity calculator instead, which models ongoing deposits.
Doubling time = ln(2) ÷ ln(1 + CAGR), the number of years it takes a value to double at a steady compound rate. It's the more precise version of the well-known "Rule of 72" shortcut (72 ÷ rate ≈ years to double).