# Conversions

Measure the performance of your application against key goals.

> **Tracking required**
>
> Track the [Goal completed](/reference/event/types/engagement/goal-completed) event to feed data into this widget.

This widget shows the total number of conversions for a specific goal, such as sign-up, CTA click, or newsletter subscription. It also gives the conversion rate, which is the percentage of sessions in which users completed a given goal.

Besides these metrics, you will find a breakdown to help you identify how user behavior varies across different devices, like mobile, desktop, and tablet.

Conversion metrics are among the most important indicators for evaluating how effectively your application drives users to complete key actions. By analyzing this data, you gain valuable insights into what drives results and where to focus optimization efforts.

## Metrics

![Total of conversions widget](/assets/reference/analytics/application/total-conversions.png)

The chart includes:

1. **Goal filter**\
   A filter to select the goal you want to analyze.
2. **Total of conversions**\
   The number of sessions in which the selected goal was completed.
3. **Conversion rate**\
   The percentage of sessions in which the selected goal was completed.
4. **Conversion rate by device**\
   Breaks down the percentage of sessions in which the selected goal was completed by the user's device type.

> **Question: What does the comparison over the last period mean?**
>
> It represents the growth or decline of the metric compared to the previous period.
>
> The *last period* refers to the date filter you selected. For example, if the filter is set to the **last 7 days**, the *last period* will be the **7 days immediately before that range**.

## Interpretation

Imagine your application had 500 sessions in total. Out of those, the goal `cta-click` was completed in 100 sessions. This means your conversion rate is 100 divided by 500, which equals 20%.

We calculate this metric using the formula:

```math
Convertion \space rate = \frac{total \space of \space conversions}{number \space of \space sessions}
```

### What the number tells you

Here are some common insights you can get from this widget:

- A higher conversion rate suggests your application is effectively guiding users toward completing key actions, likely through intuitive design, relevant content, or smooth flows.
- A lower conversion rate may signal friction in the user journey, unclear calls to action, or performance issues preventing users from completing goals.
- If one device type performs significantly better than others, it may indicate optimization opportunities. For example, improving the mobile conversion journey if desktop conversions are higher.

## Explore

- [Events](/reference/event/overview#event-types): Learn how to track user events for analytics and personalization.
- [Audiences](/explanation/audience): Understand how to delivery content to specific groups of users.