Conversion Rate Calculator
Calculate conversion rate from visitors and conversions. Enter your total visitors and completed conversions to get the conversion rate, non-conversions, and the conversion ratio.
Input
Total number of visitors, sessions, or ad clicks for the period.
How many of those visitors completed the goal action (purchase, signup, lead, etc.).
Output
| Metric | Value |
|---|---|
| No data yet | |
Guides
The Conversion Rate Calculator turns your visitor count and conversion count into the conversion rate every marketing dashboard reports — plus the non-conversion count and the raw ratio behind it.
The formula
Conversion Rate % = Conversions ÷ Visitors × 100
Non-Conversions = Visitors − Conversions
Conversion Ratio = Conversions / Visitors"Visitors" can be any denominator you're measuring against — site visitors, ad clicks, email opens, or sessions. "Conversions" is however many of them completed the goal you're tracking: a purchase, a signup, a lead form, a download.
How to use it
- Enter Visitors — the total audience for the period (visitors, clicks, sessions).
- Enter Conversions — how many of them completed the goal action.
Results update instantly as you type.
Reading the ratio
The conversion ratio (e.g. "350 / 10,000") is the same numbers behind the percentage, useful when reporting to someone who wants the raw counts rather than a rate — and it's the number to hand to a statistical-significance calculator if you're A/B testing.
What's a good conversion rate?
It depends entirely on the funnel stage and traffic source. E-commerce sites often see 1–4% for cold traffic; a well-targeted landing page with paid search intent can clear 10%+; email campaigns to an engaged list can go higher still. Track your own baseline over time rather than chasing an industry number — the trend matters more than the absolute figure.
Privacy
All calculations run entirely in your browser. Your traffic and conversion numbers are never uploaded or stored.
Use it from code
From 3 credits per callREST API
curl -X POST https://api.iotools.cloud/v1/tool/conversion-rate-calculator \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"visitors": "10000",
"conversions": "350"
}'Swap in your own key from your account. The tool's fields are the body — no wrapper.
Ask an AI agent
Use the IOTools `conversion-rate-calculator` tool (Conversion Rate Calculator) on this input:
YOUR_INPUT_HEREPaste this at any agent connected to the IOTools MCP server, then add your input.