ROI Calculator
Cost and return → ROI %, net profit, annualized ROI and return multiple. Benchmarks pre-filled, transparent formula, exportable report — free, no signup to calculate.
Example with demo defaults — adjust to your numbers
Frequently asked questions
How is ROI calculated?
ROI is your net profit divided by what you invested, as a percentage: ROI % = (amount returned − amount invested) ÷ amount invested × 100. For example, investing $10,000 and getting back $15,000 is a $5,000 net profit and a 50% ROI. The exact formula is shown under “How is this calculated?”.
What is the difference between ROI and annualized ROI?
Plain ROI measures the total return over the whole period, however long that is. Annualized ROI expresses it as an equivalent per-year rate, so you can compare investments of different lengths fairly — a 50% return over one year is far better than 50% over five. When your period is exactly the length of your inputs, the two figures match.
What is a good ROI?
There is no single benchmark — a “good” ROI depends on your time period, risk and what else you could do with the money. Use the annualized figure to compare options on the same footing, and weigh the return against the payback time and the risk involved. We deliberately do not pre-fill a claimed industry average here; the defaults are just a worked example.
Where do the default values come from?
The pre-filled numbers are demonstration defaults that produce a realistic example — they are not claimed industry averages. Replace them with your own figures for an accurate result. Where a field is labelled as an assumption, adjust it to match your business; the methodology page lists every default and its status.
Is my data stored anywhere?
No. Every calculation runs entirely in your browser. Nothing you type is sent to a server — there is no account and no copy of your numbers. If you download the PDF report, only the email you enter on the report form is stored, so we can follow up; your inputs stay on your device.