Heatmap — Tool (QGIS)

In QGIS: Processing Toolbox › Interpolation › Heatmap (Kernel Density Estimation) (qgis:heatmapkerneldensityestimation); Processing Toolbox only (also a renderer under Symbology › Heatmap, for display only).

Realises:

• Kernel density

Settings that matter

• Radius: in map units (metres in EPSG:25832). Output raster size: the cell size.
• Kernel shape: Quartic, Triangular, Uniform, Triweight or Epanechnikov. Output value scaling: Raw or Scaled.
• Weight from field: each point counts with the value of a field instead of 1.

Watch out

• The Heatmap renderer in the layer’s symbology draws a density on screen but produces no data; the Processing tool makes a raster you can analyse.

Checked in QGIS 4.2.2, October 2026. Names and options can differ in other versions.