GeoTIFF Zonal Statistics

Calculate count, minimum, maximum, mean, and sampled percentiles for GeoTIFF pixels inside a GeoJSON polygon.

Local GeoTIFF

Drop a .tif or .tiff here, or

Polygon coordinates must match the raster CRS and inclusion uses pixel centres; this tool reports one combined zone at a time.

Choose a GeoTIFF up to 32 MB and 25 million pixels.

Raster preview

Choose a file to render a preview.

GeoTIFF details

No file loaded.

Analysis result

Run the analysis to see its result.

Understanding GeoTIFF Zonal Statistics

Cells, bands and derived values

Calculate count, minimum, maximum, mean, and sampled percentiles for GeoTIFF pixels inside a GeoJSON polygon.

GeoTIFF Zonal Statistics calculates from raster cells arranged in rows, columns and bands. Resolution, nodata values, band meaning and the raster CRS affect every derived value.

How to validate the analysis

Polygon coordinates must match the raster CRS and inclusion uses pixel centres; this tool reports one combined zone at a time.

Before interpreting GeoTIFF Zonal Statistics, check band selection, units, nodata handling and edge cells. Browser-generated results should be compared with known values for important work.