Research tools
Measure the pace of change.
Calculate a compound annual growth rate, then read the result in the context of its market definition, units, and time period.
Calculate
Compare like with like.
Enter a starting value, an ending value, and the number of years between them. Both values should describe the same market boundary and use the same units.
- 01Use positive starting value.
- 02Count intervals between observations.
- 03Check definitions before comparing rates.
Read the result
What the rate can tell you.
CAGR expresses the change between two observations as a steady annual rate. The underlying path may have risen or fallen along the way.
How CAGR is calculated
CAGR = ((ending value ÷ starting value) raised to (1 ÷ years) − 1) × 100.
For an illustrative market moving from 100 to 150 over five years, CAGR is about 8.45%. The total increase is 50%. These values are a mathematical example.
Count the intervals correctly
From the end of 2022 to the end of 2026 there are four annual intervals. Use 4 even though five calendar-year labels appear in the series. Match fiscal-year boundaries and observation dates.
Before comparing forecasts
- Match geography, products, customers, and revenue definitions.
- Keep currency, inflation treatment, and units consistent.
- Distinguish observed values from estimates and forecasts.
- Inspect the annual series to see any volatility that CAGR smooths over.
Can CAGR be negative?
Yes. A positive starting value and a smaller, non-negative ending value produce a negative rate. An ending value of zero gives −100%. The standard formula requires a positive starting value.
The calculation runs in your browser. Input values are not included in the tool-use analytics event.
Make the comparison useful
Define the measure behind the rate.
Use the research scope worksheet to make the market boundary, period, and evidence needs explicit.