Free online calculator

Conversion Rate Calculator

Measure conversions relative to a defined traffic population. Includes a worked example, formula and practical FAQs.

Conversion rate—

Formula: Conversion rate (%) = conversions ÷ visitors × 100

How to use the Conversion Rate Calculator

Measure conversions relative to a defined traffic population. Enter conversions and visitors for a matching period and tracking scope.

Formula

Conversion rate (%) = conversions ÷ visitors × 100.

Worked example

45 conversions from 1,500 visitors produce a 3% conversion rate.

Interpretation and limitations

Visitors must be positive. Decide whether your denominator is users, sessions or another base before comparing reports. Multiple conversion events per visitor can produce a rate above 100%.

Conversion Rate questions

Should I use sessions or users?

Either can define a useful metric, but they answer different questions. Keep the definition consistent and label the result.

Why does my analytics rate differ?

Attribution windows, repeated events, consent choices and user-versus-session denominators may differ.

Continue your calculation

For the next step, use the CPA Calculator or the Average Order Value Calculator. Review each tool’s input definitions before carrying a result into another calculation.

Frequently asked questions

Is this calculator free?

Yes. It runs in your browser and does not require an account.

How should I use the result?

Use the result as a planning estimate and verify business-critical decisions against your source records.