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Compound Growth Calculator

Work out CAGR, project growth forward or find the years to a target.

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Find the growth rate (CAGR)

From a start value, an end value and a number of periods.

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Project forward

Grow a value at a fixed compound rate.

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How long to a target?

Solve for the time needed at a given rate.

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Year by year at this CAGR

The smooth path CAGR describes — which is almost never the path actually taken.

YearValueGain that year

Quick Tool Overview

The Compound Growth Calculator works out CAGR — the single yearly rate that would take a starting value to an ending value over a given period. It also projects a value forward at a chosen rate and solves for the years needed to reach a target.

What it does
Calculates CAGR, projects growth and solves for time to a target
You give it
A start value, an end value and a number of periods
You get back
The compound annual growth rate, or the projection you asked for
Best for
Revenue growth, portfolio returns, users and any KPI over time
Calculators Free, unlimited use No sign-up Runs in your browser

About the Compound Growth Calculator

Compound annual growth rate is the single yearly rate that would take a starting value to an ending value over a given period. Enter the beginning value, the ending value and the number of years to get it, expressed as a clean annual percentage.

CAGR is the fair way to compare things that grew unevenly, which is nearly everything. Revenue that jumps 60 percent one year and falls 20 percent the next has not grown at 20 percent a year, and the arithmetic mean of the annual changes overstates it every time. The same panel projects a value forward at a chosen rate, and solves for the number of years needed to reach a target, which covers the three questions people ask of a growth rate.

Key features of the Compound Growth Calculator

The fair way to compare uneven growth

Revenue that jumps 60 percent one year and falls 20 percent the next has not grown at 20 percent a year.

Better than an average

The arithmetic mean of annual changes overstates growth every time; CAGR does not.

Three modes in one

Find the rate, project a value forward, or solve for the number of years to reach a target.

Any period length

Years, quarters or months — the compounding follows the period you choose.

Clean percentage output

The rate is expressed as a plain annual percentage, ready for a report or a board slide.

How to use the Compound Growth Calculator

  1. 1

    Enter start and end values

    Type the beginning value and the value at the end of the period.

  2. 2

    Set the number of periods

    Usually years, but any consistent period works as long as you read the answer in the same unit.

  3. 3

    Switch mode to project or solve

    Use the other panels to project a future value at a rate, or to find the time needed to reach a target.

Frequently asked questions

CAGR equals the ending value divided by the beginning value, raised to the power of one divided by the number of years, minus one. Multiply by 100 for a percentage.

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