ROI Calculator

Calculate return on investment, annualized returns, and compound interest
This free online roi calculator runs in your browser and is part of our Calculators collection.

📊 Return on Investment (ROI) Calculator

Calculate ROI, annualized returns, and compound interest on investments

Basic ROI Calculator

Calculate return on investment for a single investment period

About ROI Calculator

Basic ROI

ROI (%) = (Net Profit / Total Investment) × 100

Shows the percentage return on your investment in a simple format.

Annualized ROI

Annualized ROI = (Final Value / Initial Investment)^(1/Years) - 1

Converts returns from any time period into an annual percentage rate for easy comparison.

Compound Interest

A = P(1 + r/n)^(nt) where P = Principal, r = rate, n = frequency, t = time

Shows how your investment grows with compound interest and regular contributions.

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Instant In-Browser Execution Runs locally in JavaScript without wait times or server delays.
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100% Privacy & Security Your inputs and files are never stored or logged on remote servers.
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Cross-Device Responsive Fully optimized for mobile smartphones, tablets, and desktop displays.
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100% Free Forever No subscription fees, no signups, and no software installations.

How to Use the Online ROI Calculator

1 Enter Initial Investment Capital

Input the total initial cost or money invested into the asset, project, or stock.

2 Enter Final Return or Ending Value

Provide the ending value, sale price, or cumulative revenue generated by the investment.

3 Specify Investment Time Period

Enter the holding period in years or months to calculate annualized performance.

4 Inspect ROI & Annualized Growth

Review Total Net Profit, Total ROI Percentage, and Annualized Return (CAGR) on the performance summary.

Frequently Asked Questions

Common questions about using this free online roi calculator.

What is the formula for Return on Investment (ROI)? ▾
Simple ROI is calculated as: `ROI (%) = ((Final Value − Initial Investment) / Initial Investment) × 100`.
Why is Annualized ROI more important than Total ROI for long-term investments? ▾
A 50% total return sounds high, but if it took 10 years to achieve, the annualized compound return is only ~4.1% per year. Annualized ROI normalizes returns per year, allowing fair comparisons against stocks, bonds, and real estate.
What is the formula for Annualized ROI? ▾
Annualized ROI is computed as: `Annualized ROI = [ (Final Value / Initial Investment)^(1 / Years) − 1 ] × 100`.
Can this calculator evaluate business marketing campaigns and equipment purchases? ▾
Yes. Enter campaign ad spend as Initial Investment and total gross margin attributed to the campaign as Final Return to calculate marketing ROI.

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