Conversion Rate Calculator
Last updated: October 15, 2026
Calculate conversion rate and the number of visitors needed for a target.
Conversion rate
—
- Non-converting visits: —
- Visitors needed for target: —
- Approximately one conversion per: —
On this page
Quick summary: Calculate conversion rate and the number of visitors needed for a target.
Read the complete guide
Updated reference sections in this guide are in English.
What this calculator estimates
Calculate conversion rate and the number of visitors needed for a target.
How to use it
Enter Visitors or leads; Conversions; Target conversions. Select Calculate to update the results.
How the calculation works
Conversion rate = conversions / visitors or leads × 100. Non-conversions equal visitors minus conversions. Estimated visitors for the target = target conversions / the observed conversion fraction. The one-in figure divides observed visitors by conversions.
Worked example: starting scenario
| Visitors or leads | 25000 |
|---|---|
| Conversions | 750 |
| Target conversions | 1000 |
| Conversion rate | 3.00% |
|---|---|
| Non-converting visits | 24,250 |
| Visitors needed for target | 33,333 |
| Approximately one conversion per | 33.3 visitors |
Important limitations
Use the same event definition, audience and reporting period for both counts. Conversions cannot exceed the visitor or lead count in this one-conversion-per-visitor model. A target projection assumes the historical rate stays constant; it is unavailable at a zero observed conversion rate.