Transform data on Grafana Labs

About transformations

Sat, 04 Apr 2026 12:26:57 +0000

About transformations

Transformations process the result set of a query before it’s passed on for visualization. Using transformations, you can:

Rename fields
Join time series data
Perform mathematical operations across queries
Use the output of one transformation as the input to another transformation

For users that rely on multiple views of the same dataset, transformations offer an efficient method of creating and maintaining numerous dashboards.

You can also use the output of one transformation as the input to another transformation, which results in a performance gain.

Sometimes the system cannot graph transformed data. When that happens, click the Table view toggle above the visualization to switch to a table view of the data. This can help you understand the final result of your transformations.

Transformation types

Grafana provides a number of ways that you can transform data. For a complete list of transformations, refer to Reference: Transformation functions.

Order of transformations

When there are multiple transformations, Grafana applies them in the order they are listed. Each transformation creates a result set that then passes on to the next transformation in the processing pipeline.

The order in which Grafana applies transformations directly impacts the results. For example, if you use a Reduce transformation to condense all the results of one column into a single value, then you can only apply transformations to that single value.

Apply a transformation to data

Sat, 04 Apr 2026 12:26:57 +0000

Apply a transformation function to data

The following steps guide you in applying a transformation to data. This documentation does not include steps for each type of transformation. For a complete list of transformations, refer to Reference: Transformation functions.

Before you begin

Add a query.

To apply a transformation function to data:

Navigate to the panel where you want to add one or more transformations.
Click the panel title and then click Edit.
Click the Transform tab.
Click a transformation.

A transformation row appear where you configure the transformation options. For more information about how to configure a transformation, refer to Reference: Transformation functions.

For information about available calculations, refer to Reference: Calculations.
To apply another transformation, click Add transformation.

This transformation acts on the result set returned by the previous transformation.

Options

Config query: Select the query that returns the data you want to use as configuration.
Apply to: Select what fields or series to apply the configuration to.
Apply to options: Usually a field type or field name regex depending on what option you selected in Apply to.

Debug a transformation

Sat, 04 Apr 2026 12:26:57 +0000

Debug a transformation

To see the input and the output result sets of the transformation, click the bug icon on the right side of the transformation row.

The input and output results sets can help you debug a transformation.

Delete a transformation

Sat, 04 Apr 2026 12:26:57 +0000

Delete a transformation

We recommend that you remove transformations that you don’t need. When you delete a transformation, you remove the data from the visualization.

Before you begin

Identify all dashboards that rely on the transformation and inform impacted dashboard users.

To delete a transformation:

Open a panel for editing.
Click the Transform tab.
Click the trash icon next to the transformation you want to delete.