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I am trying to determine the size of the individual raster layers that I have within a file geodatabase while viewing the GDB in ArcCatalog. I have enabled the size column, but that only displays the size for feature classes. I can find out the size of each by checking each one's properties, but I'm looking for a more efficient way of seeing all of their sizes.

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    Table size is nearly impossible to determine without creating a new FGDB, getting the size, adding the raster, then getting the size again. It's probably easier to just use a mosaic dataset; then you'll at least know the file and pyramid sizes.
    – Vince
    Commented May 4, 2022 at 2:02

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This may help: https://community.esri.com/t5/geoprocessing-questions/best-way-to-get-size-on-disk-of-raster/td-p/373519

I think you can use ArcPy to get the raster pixel area using the Get Raster Properties tool, then multiply by the byte size and multiply again by the number of layers.

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