ROI & Investment Return Calculator
Calculate total Return on Investment (ROI) and annualized CAGR.
Last reviewed by the myCalculator Editorial Team
Input Parameters
Calculation Results
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Formula & How ROI & Investment Return Calculator Works
Return on investment measures the gain as a percentage of what you put in: ROI = (final value − initial value) ÷ initial value × 100. If you invest $20,000 and it grows to $26,000 the ROI is 6,000 ÷ 20,000 = 30%. ROI ignores time, so compare investments using the annualised return (CAGR) as well: 30% over 4 years is 1.30^(1/4) − 1 = about 6.8% a year. Include fees, taxes and any income you received along the way for a realistic figure. A high ROI over a long period can be a worse result than a modest ROI over a short one, which is why the annualised figure matters.
- Enter Initial Investment ($): Input your target parameter value.
- Enter Final Value ($): Input your target parameter value.
- Enter Holding Period (Years): Input your target parameter value.
- Apply Formula: Calculate using
ROI = ((Final - Initial) / Initial) × 100. - Review Results: View exact computed answers, metrics, and worked mathematical proofs.
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Frequently Asked Questions (FAQs)
Why is annualized ROI important?
It allows fair comparison between investments held over different time periods.
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Authoritative Standards & Verified Reference Citations
Calculations and mathematical logic on this page are grounded in published statutory rules, regulatory standards, and official government data published by the following bodies:
Consumer guidance on mortgage borrowing capacity, compound interest formulas, and loan fees.
Official cash rate target announcements, monetary policy statements, and national economic statistical data.
Official U.S. Federal Funds Rate and comprehensive macroeconomic time-series data.
Key Eurozone interest rates, deposit facility rates, and monetary policy operations.
Residential mortgage serviceability buffer framework (3.0% stress test hurdle rate).
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