> ## Documentation Index
> Fetch the complete documentation index at: https://loops.so/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Understanding metrics

> Read goal metrics and the conversions chart

Once a campaign with an attached goal is sending, Loops tracks impressions, enrollments, and conversions. This guide explains how to read those numbers. For definitions of the underlying terms, see the [glossary in the Goals overview](https://loops.so/docs/goals/overview.md#glossary).

## Reading goal metrics

* **Contacts evaluated** and **contacts converted** count **unique contacts**. A person is counted at most once per goal.
* **Contacts enrolled** and **active / completed measurements** count **windows**. Every enrollment opens exactly one window, and a person could have multiple enrollments on the same goal.

The **conversions chart** plots first-time conversions per day, bucketed in **your browser's timezone**. A contact is never counted twice, and daily counts may differ by region.


## Related topics

- [Overview](https://loops.so/docs/goals/overview.md)
- [Building your first goal](https://loops.so/docs/goals/building.md)
- [Email open rates](https://loops.so/docs/deliverability/understanding-email-open-rates.md)
- [Get campaign metrics](https://loops.so/docs/api-reference/get-campaign-metrics.md)
- [Open rates are a vanity metric](https://loops.so/docs/guides/open-rates.md)