ROI Calculator
Return on investment, profit & annualized return
Measuring an investment, project or campaign? Enter what you put in, what it's worth now and how long you held it to see your return on investment.
How to calculate ROI
ROI is simply (gain − cost) ÷ cost, shown as a percentage. A $10,000 investment now worth $15,000 has a $5,000 gain — a 50% ROI. But 50% over one year is very different from 50% over ten, which is why annualized return matters: it restates the gain as an average yearly rate so you can compare investments of different lengths fairly.
ROI Calculator: frequently asked questions
What is a good ROI?
It depends on the investment and its risk. The long-run US stock market has averaged roughly 7–10% per year; returns consistently above that usually carry more risk.
What's the difference between ROI and annualized return?
ROI is the total return over the whole period; annualized return restates it as an average per-year rate so you can compare investments held for different lengths of time.