Packaging Box Size & Void Fill Calculator
Select the optimal shipping carton size and compute exact void fill volume needed to safeguard fragile items during fulfillment and transit.
1. Unit Product Specs
2. Master Shipping Box (Outer)
How to use
- Enter product dimensions (length, width, height).
- Specify recommended cushion padding clearance margin on all sides.
- Select standard packaging box type.
- Review void fill volume, dimensional weight, and estimated packing material requirements.
How to calculate box size and void fill?
Choosing the correct box size avoids package damage while eliminating unnecessary dimensional weight fees from couriers.
Our calculator computes void volume (box internal capacity minus item volume) to determine how many litres of loose fill, foam, or paper are needed.
Protective packaging materials
Bubble wrap cushions against external shock, while kraft paper dunnage and air pillows stabilize cargo against interior box transit shifting.
Frequently Asked Questions
How much clearance should be added for packaging?
Typically add 25 to 50 mm (1 to 2 inches) around all sides of delicate products for bubble wrap or protective loose fill.
How to calculate void fill volume?
Subtract the volume of the items from the internal volume of the corrugated shipping box.
What is the lightest void fill material?
Inflatable air cushions provide maximum displacement volume with virtually zero added package tare weight.
Related Tools
Compound Interest Calculator
Calculate monthly investment growth with compounding interest.
Cash Loan Calculator
Calculate monthly payment, total interest, and comparison between annuity and differentiated loans.
Mortgage Early Payoff
Evaluate interest saved and mortgage term reduction with extra principal payments.
Customs Clearance Calculator (EU & USA)
Calculates vehicle customs clearance taxes in Ukraine: import duty, excise tax, VAT, and US import delivery fees.