CAGR Calculator (Compound Annual Growth Rate)

What compound annual growth rate takes a value from A to B over N years?

Single calculationv1.0.0Verified 2026-11-01Runs in your browser

Spec sheet

cagr · v1.0.0

Method

Geometric average growth

01CAGR = (end ÷ start)^(1/years) − 1
02doubling time = ln 2 ÷ ln(1 + CAGR)

Limits — read before relying on it

Describes a smoothed rate; actual year-to-year growth varies.

Sources

Compound annual growth rate (standard definition)textbook

Worked example

computed by the same formula

100 → 200 in 5 years

Inputs

Starting value: 100
Ending value: 200
Years: 5

Result

CAGR: 14.87 %
Doubling time: 5 years

Questions

How is the cagr calculator calculated?

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Geometric average growth. CAGR = (end ÷ start)^(1/years) − 1 · doubling time = ln 2 ÷ ln(1 + CAGR)

Example: 100 → 200 in 5 years?

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CAGR: 14.87 %; doubling time: 5 years.

What does this calculator not cover?

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Describes a smoothed rate; actual year-to-year growth varies.

Where do the numbers come from?

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Sources: Compound annual growth rate (standard definition). The formula is versioned (cagr v1.0.0) and covered by automated tests.

Is my data stored?

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No. The calculation runs in your browser and nothing is sent unless you choose to save a shareable link.

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