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Both calculators run independently — change the inputs on either side to compare results.

CAGR Calculator

Calculate the compound annual growth rate (CAGR) — the constant per-year rate that turns an investment's starting value into its ending value. Use it to compare funds, portfolios, or business metrics that grew at uneven annual rates on a level playing field.

Initial Investment Value ($)

Final Investment Value ($)

Number of Years (years)

Accounting

Return on Investment (ROI) Calculator

Compute the annualized return on an investment from its initial cost, final value, and the time it was held — putting investments of different durations on a common, comparable scale. Use it to evaluate whether a stock, real estate deal, or business investment outperformed alternatives like an index fund.

Initial Investment ($)

Final Value ($)

Investment Period (years)

Period Type

Key differences

	CAGR Calculator	Return on Investment (ROI) Calculator
Category	Stock Market	Accounting
Inputs required	3	4
Result	CAGR (%)	Annualized ROI (%)
What it does	Calculate the compound annual growth rate (CAGR) — the constant per-year rate that turns an investment's starting value into its ending value. Use it to compare funds, portfolios, or business metrics that grew at uneven annual rates on a level playing field.	Compute the annualized return on an investment from its initial cost, final value, and the time it was held — putting investments of different durations on a common, comparable scale. Use it to evaluate whether a stock, real estate deal, or business investment outperformed alternatives like an index fund.