Compound annual growth rate (CAGR) is the constant yearly return that grows a starting value to an ending value over a period, assuming reinvestment. The CAGR Calculator computes it from your inputs.

How do I calculate CAGR from starting and ending values?

CAGR = (Ending ÷ Starting)1 ÷ years − 1. Enter values and duration in the Standard CAGR Calculator — fractional months and days are included in the time period.

What is a good CAGR for investments?

It depends on asset class and risk. Broad equity indexes have historically averaged high single-digit to low double-digit annual returns over long horizons. Compare CAGR against benchmarks and inflation, not in isolation.

Can CAGR be negative?

Yes. If the ending value is below the starting value, CAGR is negative — the investment lost value on an annualized basis over the period.

CAGR vs ROI — what is the difference?

ROI is total return relative to cost. CAGR is the geometric mean annual growth rate. For calendar holding periods use the Exact Dates CAGR Calculator; for projections see the Future Value Calculator or ROI Calculator.

Does this calculator include dividends or fees?

No. Enter net starting and ending values after fees if you want an after-cost CAGR. The tool does not model cash flows between purchase and sale.

CAGR Calculator – shoutingnow.com

Annual Growth Rate

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Enter values and click Calculate.

Year	Growth	Value

Time to double starting investment
Years:	—
Months:	—
Days:	—

Investment Value By Year

Note: This calculator is for illustrative purposes only and does not constitute financial advice. We do not offer investment opportunities or promise returns.

How to use this CAGR calculator

Choose a currency symbol for display (does not convert exchange rates).
Enter your starting value and ending value.
Set the duration in years, months, and days.
Click Calculate — CAGR %, summary text, growth table, doubling time, and chart update together.

Need calendar dates instead of a typed duration? Use the CAGR Exact Dates Calculator. To project a future balance from a known CAGR, try the CAGR Future Value Calculator.

What is CAGR?

Compound annual growth rate (CAGR) is the constant yearly rate that would grow a starting investment to an ending value over a given period, assuming profits are reinvested each year. It smooths volatile year-to-year returns into one comparable annual figure — useful when comparing funds, portfolios, or business revenue across different time spans.

CAGR differs from simple total return because it accounts for time. Doubling your money in two years implies a much higher CAGR than doubling in ten years, even though the total gain is 100% in both cases.

CAGR formula

t = years (including fractional months and days)

Worked example

An investment grows from $100 to $130 over 4 years:

CAGR = (130 ÷ 100)^1/4 − 1 ≈ 6.78% per year
The growth table shows year-by-year balances compounding at that rate.
Time to double at 6.78% is about 10 years, 7 months — useful for long-term planning.

CAGR vs ROI

ROI measures total gain relative to cost and can be annualized, but CAGR is the standard label for the geometric mean return over multiple compounding periods. For modeling contributions and compounding frequency, use our Compound Interest Calculator.

Examples and use cases

Real-world use cases

Mutual fund review: An investor compares a fund’s value from $8,000 to $11,200 over 5 years to benchmark against the S&P 500’s CAGR.
Business revenue: A founder reports revenue growth from $500K to $900K over 3 years as CAGR for investor updates.
Portfolio rebalancing: Someone annualizes a lump-sum stock gain to decide whether to shift profits into bonds.