Free ROI Calculator Online

Calculate your return on investment in seconds. Enter your investment amount and returns to see ROI percentage, annualized returns, and payback period -- with visual charts.

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Why Use Our ROI Calculator?

  • Instant results -- no signup or downloads
  • Annualized ROI for comparing different time horizons
  • Visual investment growth chart
  • Shareable result URLs
  • Works on mobile, tablet, and desktop
  • 100% private -- data never leaves your browser

How ROI Is Calculated

Return on Investment (ROI) measures the gain or loss from an investment relative to its cost.

ROI = ((Returns - Investment) / Investment) x 100

Our calculator also computes annualized ROI using the CAGR formula, making it easy to compare investments of different durations.

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Free, instant, and no signup required.

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ROI Calculator FAQ

How do I calculate ROI?
ROI = ((Returns - Investment) / Investment) x 100. Use our free calculator to compute it instantly.
What is a good ROI percentage?
A good ROI depends on context. For business investments, 15-30% annually is strong. The S&P 500 averages about 10% per year.
Is this ROI calculator free?
Yes, our ROI calculator is 100% free with no signup required. All calculations run in your browser.