CAGR Calculator
Turn a start value, an end value and a time span into the compound annual growth rate — the only fair way to compare investments held for different lengths of time.
Every figure below is labelled in the currency you pick. Amounts are not converted — enter values in the same currency.
Why the simple average misleads
An investment that gains 100% one year and loses 50% the next has an arithmetic average return of +25%, yet you end exactly where you started. CAGR reports 0%, which is the truth. Any time returns vary, the arithmetic mean flatters the result and the geometric mean — CAGR — tells you what actually happened.
What CAGR hides
CAGR is a smoothed figure. It says nothing about the path: two investments with identical CAGR can differ enormously in volatility, drawdown and how it felt to hold them. Use it to compare endpoints, not to judge risk.
The formula
CAGR = (End ÷ Start)^(1/years) − 1
Every result on this page comes from this formula. Nothing is rounded until the final display, so figures match a spreadsheet to the cent.
How to use the CAGR Calculator
- Fill in each field with your own figures — the defaults are only there as an example.
- The result updates as you type, so there is no button to press.
- Check the breakdown under the main result for the supporting numbers.
- Use the copy button to take the result with you, or share the link to reload the same inputs.
CAGR Calculator — frequently asked questions
Is this cagr calculator free to use?
Yes. Every calculator on the site is free, needs no sign-up, and runs entirely in your browser, so your figures never leave your device.
How accurate is the result?
The maths is exact for the formula shown on the page. Accuracy in the real world depends on your inputs and on assumptions the formula cannot see, so treat the output as a well-grounded estimate rather than a quote.
Can I use it on my phone?
Yes. The page is responsive, weighs a few kilobytes and works offline once loaded, so it behaves the same on a phone as on a desktop.
What people search for
This page answers each of these searches. They are the exact phrases visitors use to find the cagr calculator.
- cagr formula
About this calculator
Written and reviewed by The Samsung Calculator editorial team. Every calculator is written against a published formula, reviewed against at least one independent reference implementation, and dated when it changes.
Last reviewed August 15, 2026 · Calculation runs client-side · No data collected · Report an error