A roomy interior
A 60 × 36 × 30 in box and 70 × 42 × 34 in cargo space; opening left blank.
Fits the interior, with 4 in total spare height. Length runs along depth, width across, height upright. Both opening dimensions remain unchecked.
Measure twice. Avoid the sad drive home.
Measure with a little guidance. Check your cargo space, opening, and object in every straight orientation.
What's under the hood
The calculator tests every distinct way to align a rectangular object's length, width, and height with the cargo space's depth, width, and height. Interior and any supplied opening measurements must clear in the same orientation. An omitted opening dimension is explicitly not checked.
A fit with half an inch (1.27 cm) or less at the tightest point is marked borderline. This is the site's caution threshold, not a safety standard. Clearance is total spare distance on an axis, not clearance on each side.
Both input modes share the same measurements. Changing units converts the display while keeping the original precision for calculations. Object presets are illustrative, editable examples, not manufacturer measurements.
Worth knowing
Try it on paper first
Real inputs, real outputs, and the assumption that changes the answer.
A roomy interior
Fits the interior, with 4 in total spare height. Length runs along depth, width across, height upright. Both opening dimensions remain unchecked.
Rotate the object
Fits when the 40-inch width runs along cargo depth. Put the 25-inch height across and the 20-inch length upright. Interior height is tightest, with 2 in total spare distance.
The opening is the bottleneck
No straight fit in any of the six orientations. The closest orientation is 5 in too wide at the opening. This does not simulate other insertion paths.
Right on our caution threshold
Borderline: 0.5 in total spare distance. That is 1.27 cm, and it meets the site's caution threshold exactly. A cube has only one distinct orientation.
Short answers
Cubic volume does not describe shape. A long, rigid box can have less volume than the cargo area and still fail at the opening or between wheel wells.
Yes. It checks up to six distinct axis-aligned orientations. It does not simulate diagonal insertion, tilting through the hatch, or bending a flexible object.
They are intentionally not fabricated. A future database will only include dimensions with a source, configuration, and verification date. For now, manual measurements are the trustworthy option.
No. It means the rectangular dimensions clear the measurements you entered. Interior curves, seats, trim, doors, and the physical loading path can still interfere.
No. Every preset is an illustrative starting point. Measure and edit all dimensions for your actual item. A TV screen diagonal must never be used to guess a carton's dimensions.