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Find the compound annual growth rate (CAGR) between any two values, and the real CAGR once you take inflation out.
Default inflation rate for Other: 3.0% per year, based on long-run global CPI averages data (2026). You can override it in each calculator’s advanced options. See data sources for full citations.
CAGR is the constant annual rate that links a start and end value:
Where: Vbegin = starting value, Vend = ending value, n = number of years, and i = annual inflation rate.
Growing $100,000 into $200,000 over 5 years is a CAGR of 14.87%. At 2.5% inflation, the real CAGR is about 12.07%, the rate at which your buying power actually grew.
Gain 50% then lose 50% on $100,000 and you end at $75,000, a CAGR of about −13.4% over two years, even though the simple average return is 0%. That 13.4% gap is volatility drag, and it's the reason CAGR tells the true story while averages flatter it.
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See what your money will grow to, and what it will actually buy in the future once you account for inflation.