In Roblox, the default backpack/tools bar sits at the bottom of the screen, and one Roblox developer forum post says it is about 5 pixels above the very bottom.

What that means

  • The backpack UI itself uses fixed tool slots sized 60 px by 60 px.
  • If you’re positioning your own UI above it, a forum example suggests aligning it about 70 pixels from the bottom so it sits just above the tools.

Important note

Roblox’s Backpack object is an inventory container, not a physical item with a real-world height, so “how high” usually refers to the UI position on the screen rather than a game-world measurement.

Meta description: The Roblox backpack UI is positioned near the bottom of the screen, with tools about 5 pixels from the bottom and 60 by 60 slot sizing.