Container Fit Calculator — Will It Fit in a Box, Bag, or Suitcase?

Will It Fit in Your Container?

Check boxes, bags, suitcases, storage units, moving pods, and shipping containers by interior dimensions, opening size, and packing orientation.

This calculator determines if items will fit in suitcases, bags, boxes, storage units, moving pods, and shipping containers. It covers questions like “what size storage unit do I need,” “will furniture fit in a 5x10 storage unit,” “what size box do I need,” and “will it fit in a suitcase” by comparing item size against interior dimensions, container opening size, packing orientation, and weight limits.

4 questions answered · updated daily

Real verdicts, with the math behind them.

Every check returns one of three outcomes — with the dimensions, the constraints that mattered, and exactly how we reached the verdict.

Fits

Folded suit · 22″ carry-on

20×13×3 in folded. Fits flat in the main compartment with 0.5″ of depth margin for compression.

Tight fit

Apartment sofa · 5×10 storage unit

78×34×32 in sofa fits along the 10 ft wall, but the roll-up door height leaves less than 2″ of margin when stood on end.

Does not fit

Mounted snowboard · checked suitcase

60×12×4 in. Snowboard length 60″ exceeds the 29″ max suitcase dimension. Use a dedicated snowboard bag or ship separately.

What to measure.

Four numbers decide nearly every fit check. Get these right and the rest follows.

01Container interior dimensions — length, width, and depth measured from inside wall to inside wall, not the exterior.

02Container opening size — many containers have openings smaller than their interior, so check the opening vs interior dimensions before assuming the item can be inserted.

03Item dimensions including packaging — if the item has padding, bubble wrap, or a box, measure the packaged dimensions.

04Capacity and weight limits — suitcases have airline limits, shipping boxes have carrier limits, storage units and moving pods have floor/load limits, and bags have structural limits.

Common mistakes.

Most “it didn't fit” stories trace back to one of these oversights.

⚠Measuring the exterior of the container instead of the interior — walls, padding, and structure reduce usable space by 1–3 inches per side.

⚠Not considering the opening constraint — a suitcase may have 28" of interior depth but only a 24" opening width.

⚠Using volume alone for storage units or moving pods — a sofa may fit by cubic feet but still fail because the door opening, interior length, or aisle plan is wrong.

⚠Ignoring weight limits — a container may have enough space but exceed the weight limit for airlines, shipping, storage pods, or structural integrity.

Questions we keep getting.

How do I measure the inside of a suitcase?

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.

What is the standard carry-on suitcase size?

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.

How do I calculate if an item fits in a box?

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.

What size storage unit do I need for furniture?

A 5x10 storage unit can usually handle a sofa, mattress, boxes, and a small apartment load if packed tightly. Larger homes often need 10x10 or 10x20 units. Measure the largest rigid item first, then compare it with the storage unit door opening and interior length.

Will a sofa fit in a storage unit?

Most sofas fit in a 5x10 or larger storage unit when stood on end or placed along the long wall. The key checks are sofa length, unit interior depth, and the roll-up door opening height.

What size moving pod or shipping container do I need?

For moving pods, compare your largest furniture pieces with the pod interior and door opening before choosing by room count. For shipping containers, check both the container opening and interior dimensions because the usable door opening is smaller than the interior width and height.

Will It Fit in Your Container?