Advertising ROI calculator
Calculate advertising return and return on ad spend.
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Conversion rate calculator
Calculate visitor conversion rate for a page or campaign.
Templates and calculations run locally in your browser. No generative AI or paid API is used. Review results before use.
Understand the calculation
Conversion rate = converting visitors ÷ total visitors × 100.
A practical example
If 20 of 1,000 visitors convert, the visitor conversion rate is 2%.
What this tool cannot tell you
Use unique converting visitors for this visitor-based calculation, so conversions do not exceed visitors.
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