Select a container type below for a quick check, or enter custom dimensions to test any container.
This calculator determines if items will fit in suitcases, bags, boxes, and other containers. We account for interior dimensions, opening constraints, and packing orientation — covering luggage, shipping boxes, storage bins, and specialty containers.
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Check any item against any space — it's free.
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Open the suitcase fully flat and measure length, width, and depth from the inside walls. The depth is the distance from the bottom lining to where the zipper closes. Don't include exterior handles, wheels, or frame in your measurements.
Most airlines allow carry-on bags up to 22" × 14" × 9" (including handles and wheels). The interior usable space is typically 20" × 13" × 8" — about 2,080 cubic inches.
Measure all three dimensions of both the item and the box interior. Each item dimension must be less than or equal to the corresponding box dimension (length ≤ box length, width ≤ box width, height ≤ box height). Try all orientations if the first doesn't work.
Item dimensions vs. interior capacity — with packing orientation suggestions.
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