Free conversion-rate calculator
Calculate an explicit outcome ratio and choose the right denominator for your website or advertising question.
Try your own numbers.
The starting values are illustrative. Replace them with compatible numbers from your report.
Enter a completed-outcome count and the population you want to compare it with. The calculator intentionally leaves that choice visible. A ratio based on clicks differs from one based on sessions, and an event count can differ from the number of visits containing an event.
Work through it, step by step.
Choose sessions, users or clicks as the denominator and use that same definition throughout the comparison. Name the outcome being counted.
For a share of converting sessions, use sessions containing the outcome as the numerator. For an event-count ratio, enter the events and label the result accordingly.
Keep raw counts beside the result and check traffic mix before interpreting a change as an experience improvement.
Make it concrete.
Forty outcome events across 2,000 sessions produce a 2% event-count ratio. If some sessions contain multiple outcomes, that is not necessarily the percentage of sessions that converted.
What to keep in mind.
A result over 100% may indicate repeat events or incompatible inputs. It cannot represent a share of distinct sessions unless the numerator was defined incorrectly.
Your next useful step.
Use the conversion-rate-drop guide to check measurement and segment changes. Keep the event definition and comparison period in the report.
Working with this in Liftaven
Calculations run locally in your browser. These tools do not connect accounts or send your inputs to Liftaven. Use numbers from the same reporting period and keep currencies consistent. A calculated ratio describes your inputs; it does not establish the cause of a change.
Explore the workspaceSources & context
This note combines original practical guidance with the reporting references below. Follow provider documentation for current definitions and availability; suggested investigations are not guarantees of a particular result.