Box Size Optimizer Calculator

Minimum box dimensions from product size with padding.

Product length (in)

Product width (in)

Product height (in)

Padding per side (in)

Number of boxes

Tab to move between fields

Box length (in)

Box width (in)

Box height (in)

Box volume (cu in)1,680

Void fill needed (cu in)1,200

Void fill %71.4

Box volume (cu ft)0.97

Total volume (cu ft)0.97

How to Use This Calculator

Enter product dimensions (length, width, height in inches or cm) and fragility level.
Enter desired void fill amount and packaging material type.
Read recommended box inner dimensions (L x W x H) with sufficient void fill clearance.
Review dimensional weight impact — right-sizing reduces DIM weight charges from carriers.
Compare multiple box size options to find the best fit for cost and protection.

How the result changes with Product length (in)

Product length (in)	Box length (in)	Box width (in)	Box height (in)
12	16	12	10
42	46	12	10
78	82	12	10
108	112	12	10

Product length (in): Length of the product being packaged, in inches.
Product width (in): Width of the product being packaged, in inches.
Product height (in): Height of the product being packaged, in inches.
Padding per side (in): Cushioning clearance added to each side of the product (e.g., 2 in adds 4 in to each box dimension).
Number of boxes: How many identical boxes you need.

Identify Input Parameters
4 parameters
Product length (in) = 10, Product width (in) = 8, Product height (in) = 6, Padding per side (in) = 2 = 5 input(s) provided
Calculate Box length
Box length = productL + 2 * padding
14 = 14
Calculate Box width
Box width = productW + 2 * padding
12 = 12
Calculate Box height
Box height = productH + 2 * padding
10 = 10
Calculate Box volume
Box volume = boxL * boxW * boxH
1680 = 1680
Calculate Void fill needed
Void fill needed = boxVolumeCuIn - productVolumeCuIn
1200 = 1200