Compound Annual Growth Rate (CAGR) Calculator
Local ProcessingCalculate annualized geometric growth rate CAGR = (End / Start)^(1 / years) - 1.
How It Works & Processing Standards
Enter values above to calculate results automatically. Check each input field for guidance and units.
Example: Initial Starting Value = 100, Final Ending Value = 121, Time Horizon (Years) = 2 → 0.1
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Turns an uneven history into "the steady yearly rate that gets you from start to end". Also finds the doubling time.
What You Can Do
- CAGR
- (end ÷ start)^(1 ÷ years) − 1, shown as a percentage.
- Doubling time
- Periods needed to double at a growth rate per period (decimal).
How to Use Compound Annual Growth Rate (CAGR) Calculator
- 1Choose a calculationPick CAGR or doubling time.
- 2Enter valuesCAGR needs start, end and years; doubling time needs the rate as a decimal (7% → 0.07).
- 3Read the resultCAGR is a percentage; doubling time is a number of periods.
Examples
1,000 → 2,000 in 5 years
Input: Start 1,000, end 2,000, 5 years
Result: 14.8698354997%
Doubling at 7% a year
Input: Rate 0.07
Result: 10.2447683511
Common Use Cases
- Comparing average growth of revenue or investments
- Turning a total return into a yearly rate
- Checking a Rule of 72 estimate exactly
Frequently Asked Questions (FAQ)
Why does it differ from the Rule of 72?
72 ÷ 7 ≈ 10.3 years is an estimate. This tool calculates ln 2 ÷ ln(1.07) ≈ 10.24 exactly.
Does it account for ups and downs?
No. CAGR only looks at the start and end values.