ROI Calculator Online — Return on Investment
Calculate your return on investment (ROI) by entering how much you invested and how much you got back. This ROI calculator shows your percentage return, net gain or loss, and investment multiple — useful for stocks, real estate, marketing, and business decisions.
How the Formula Works
ROI: ((Return − Investment) ÷ Investment) × 100
Net Gain: Return Amount − Investment Amount
Investment Multiple: Return ÷ Investment
Example: Invest $1,000, get back $1,350 → ROI = 35%, Net Gain = $350, Multiple = 1.35×.
Frequently Asked Questions
What is ROI?
ROI (Return on Investment) measures how much profit you made relative to what you invested. A 50% ROI means you earned $0.50 for every $1 invested.
What is a good ROI?
It depends on the asset class. Stock market averages ~10% annually. Real estate 8–12%. Marketing campaigns vary widely. Higher risk typically means higher expected ROI.
How is ROI different from profit margin?
Profit margin measures profit relative to revenue. ROI measures profit relative to the investment cost. Both are useful but answer different questions.
Does ROI account for time?
Basic ROI does not factor in time. For time-adjusted returns, use annualized ROI or IRR (internal rate of return).
Can ROI be negative?
Yes. A negative ROI means you lost money on the investment. The calculator will clearly show this as a loss.