CAGR Calculator

How CAGR Calculator works

Find the compound annual growth rate between a starting and ending value. CAGR smooths volatile growth into one yearly figure, which is why investors quote it. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.

That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.

The smoothed annual growth rate

CAGR is (end ÷ start)^(1 ÷ years) − 1. From 100,000 to 250,000 over five years that is 20.11% a year — the constant rate that would produce the same end value.

It is not the actual path. The investment may have gained 60% one year and lost 10% the next; CAGR ignores that and reports one comparable number.

Why it beats an average

A simple average of yearly returns overstates performance when returns are volatile, because losses and gains are not symmetric. CAGR accounts for compounding, which is the thing that actually happens to money.

What it cannot tell you

Risk, drawdown or consistency. Two investments with the same CAGR can have wildly different worst years, and CAGR says nothing about which was survivable.

Good to know

• Works offline once loaded, including on flights and in locked-down networks.
• No file size limit beyond your device's own memory.
• Free to use, with no account and no usage counter.
• Results are produced locally, so they are not logged or shared with anyone.

Questions

How this number is produced

The calculation is (end ÷ start)^(1 ÷ years) − 1, following compound annual growth rate. The formula is repeated here so the result can be checked by hand rather than taken on trust.

This is a calculator, not advice. No clinician, accountant or adviser has reviewed it, and it cannot see your circumstances. For anything involving health, a loan, a tax filing or a religious obligation, confirm the figure with a qualified professional or the authority that publishes the rule.