Calculators
Find clear answers to common questions about ROI Calculator, including usage, output, and common issues.
Use this ROI calculator to measure how well an investment, campaign, product, or spend performed relative to its cost. It is useful for marketing, business decisions, budgeting, experiments, and quick financial checks where you want to compare return against the original investment.
ROI Calculator helps you work through common numeric scenarios faster, especially when you need a quick answer without opening a spreadsheet.
Enter total return or revenue on the first line and total cost on the second line. The tool calculates profit and ROI percentage.
ROI stands for return on investment. It shows how much profit you made compared to the original cost.
Yes. Decimal values are useful for realistic budgets and returns.
Yes. It works online in the browser.
Profit is the raw gain amount, while ROI expresses that gain relative to cost as a percentage.
ROI Calculator helps you work through common numeric scenarios faster, especially when you need a quick answer without opening a spreadsheet.
Start by checking the input format, removing accidental spaces or unsupported characters, and comparing your input against the example pattern on the page.
Fix: Enter return or revenue first and cost second.
Fix: Remember that this tool shows return relative to cost, not all financial planning metrics.
Fix: Use a valid non-zero cost value for standard ROI calculations.
If you want to see realistic input and output patterns, open the examples page. If you want step-by-step usage guidance, open the guide page.
Open the main ROI Calculator page to test your own input and generate a live result.