Standard Box Size Calculator

• Standard carton size calculator: enter an item's length, width, height and quantity to get the recommended inner and outer box dimensions, volume utilization, and stacking layout
• Customize the unit (mm/cm/in), flute type, clearance and board thickness, with two modes: recommend a box size or fit items into a given box

1. Open the tool page — sample values are loaded by default, no installation needed
2. In Settings, enter the item's length, width, height and quantity, and choose the unit, flute type, clearance and board thickness. To reverse-calculate, switch to 'Fit Items into Given Box' and enter the inner box dimensions
3. Click 'Calculate Box' to see the recommended inner/outer size, utilization and layout, then click 'Copy' to save the result

• This tool is completely free and requires no sign-up
• Everything runs locally in your browser — your data never leaves your device
• Two modes available: recommend a box size, or work out how many items fit into a given box

Free online standard carton size calculator. Enter item length, width, height and quantity to get recommended inner/outer box dimensions, volume utilization, and stacking layout. Supports custom board thickness, clearance, and reverse calculation for a given box.

Open the tool page — sample values are loaded by default, no installation needed In Settings, enter the item's length, width, height and quantity, and choose the unit, flute type, clearance and board thickness. To reverse-calculate, switch to 'Fit Items into Given Box' and enter the inner box dimensions Click 'Calculate Box' to see the recommended inner/outer size, utilization and layout, then click 'Copy' to save the result

This tool is completely free and requires no sign-up Everything runs locally in your browser — your data never leaves your device Two modes available: recommend a box size, or work out how many items fit into a given box

Yes, Standard Box Size Calculator is completely free. No download or installation required — it runs right in your browser.