Stop Guessing Your Packing Costs.
Instantly calculate the exact box size, protective materials, and labor needed to ship any item safely. Avoid carrier surcharges and protect your margins.
100% Free. No account required.
From Dimensions to Dollars in Seconds
Our physics-based engine does the heavy lifting for you.
1. Enter Item Details
Input dimensions, weight, and fragility. Packing multiple items? We handle 3D nesting automatically.
2. Engine Calculates
PackWiser selects the optimal box, calculates exact void fill volume, and estimates labor time.
3. Get Your Estimate
See a complete breakdown of box costs, materials, labor, and potential carrier surcharges.
Built on Packaging Science, Not Guesswork.
Most estimators just add up volumes. PackWiser uses real-world packaging logic to ensure your items actually fit and ship safely.
Surcharge-Aware
Automatically detects UPS and FedEx penalties for Large Packages, Oversize, and Additional Handling.
Smart Modifications
Considers box resizing (cutting down) and telescoping (combining two boxes) for awkward items.
Transparent Reasoning
Every recommendation includes a plain-English explanation of exactly why that box was chosen.
Example Output
Ready to pack smarter?
Join thousands of shippers who use PackWiser to optimize their packaging.
Start Your Estimate