ROI Calculator
Work out your return on investment — net profit, total ROI and annualised ROI — from what you put in and what it's worth now. The results update live; nothing is stored.
How ROI is calculated
Return on investment compares your gain to your cost. The net profit is simply the final value minus the initial investment, and the total ROI expresses that gain as a percentage of what you put in. Because a 50% return over one year is far better than 50% over ten, the annualised ROI converts the total return into a per-year rate so you can compare investments fairly. The results update live as you type — nothing is sent to a server or stored.
More PAYATE tools
Frequently asked questions
What is ROI?
ROI (Return on Investment) measures how much you gained or lost on an investment relative to its cost, as a percentage: ROI = (final value − initial investment) ÷ initial investment × 100. A positive ROI is a profit; a negative ROI is a loss.
What is annualised ROI?
Total ROI ignores how long you held the investment. Annualised ROI converts it to a per-year rate so you can compare investments of different lengths: ((final ÷ initial)^(1 ÷ years) − 1) × 100.
What counts as a good ROI?
It depends on the asset and risk. As a rough benchmark, the long-run stock market has returned roughly 7–10% per year. A higher ROI usually comes with higher risk, so always compare on an annualised basis and against a relevant benchmark.
Does this tool store my numbers?
No. The calculation runs entirely in your browser and nothing is sent or stored. For more finance helpers see the Compound Interest and Currency Converter tools.