CAGR Calculator
Calculate the compound annual growth rate between a starting and ending value.
Processing: This tool runs entirely in your browser. Your input and any file you open stay on your device — nothing is uploaded to a server.
How to use the cagr calculator
- Fill in the fields — they start with a worked example.
- Read the answer, and the arithmetic shown beneath it.
- Copy the results, or adjust the inputs to compare scenarios.
About this tool
CAGR is the steady annual rate that would take a starting value to an ending value over a period — the smoothed growth rate. It answers 'what rate would have produced this?', which makes two very different histories comparable.
That smoothing is also its limitation. A business that grew 80% one year and shrank 30% the next has the same CAGR as one that grew steadily, and they are not the same business. CAGR describes the endpoints, not the journey.
Common uses
- Reporting revenue growth over several years.
- Comparing an investment against a benchmark.
- Turning total growth into a per-year figure.
Frequently asked questions
- What is the difference between CAGR and average growth?
- An average of yearly percentages overstates growth when results vary, because percentages do not average linearly. CAGR is the rate that actually reproduces the endpoints.
- Can CAGR be negative?
- Yes. If the ending value is lower than the starting value, the rate is negative — a compound annual decline.
Related tools
ROI Calculator
Calculate return on investment as a percentage, plus annualised return over a holding period.
Compound Interest Calculator
Project savings or investment growth with compounding and optional monthly contributions.
Percentage Calculator
Work out a percentage of a number, what percentage one number is of another, and percentage change.
Profit Margin Calculator
Calculate gross profit, margin and markup from cost and selling price.