Box Fit Calculator
Check all six axis-aligned item orientations instead of matching length to length only. ParcelCal reports the best grid, utilization, and a minimum-box estimate.
Live calculator
CALCULATES LOCALLY · NO UPLOAD Calculate how many items fit
MAXIMUM ESTIMATED ITEMS
Best orientation
Grid arrangement
Geometric utilization
Remaining volume
Minimum box for target
Allows rectangular grid packing only. Add clearance for tolerances, padding, and insertion.
How this calculation works
The calculator evaluates all six rotations. It does not model nesting, compression, irregular shapes, dividers, or mixed orientations within one box. ParcelCal runs the calculation in your browser; no package or shipment information is uploaded.
FORMULA
Fit count = floor(Box L ÷ Item L) × floor(Box W ÷ Item W) × floor(Box H ÷ Item H)
The calculator evaluates all six rotations. It does not model nesting, compression, irregular shapes, dividers, or mixed orientations within one box.
Worked example
Orientation changes the answer
- 1.Item: 8 × 6 × 4 in
- 2.Box: 24 × 12 × 8 in
- 3.Best grid: 3 × 2 × 2
The estimated maximum is 12 items at 100% geometric utilization.