Dimensional Weight Calculator
Calculate dimensional (DIM) weight from L×W×H with IATA 6000 and courier 5000 divisors, compare carriers, and see the chargeable weight you will be billed. Free, in-browser.
Loading tool...
What is Dimensional Weight Calculator?
The Dimensional Weight Calculator converts your package measurements into the volumetric weight carriers use for billing, compares all common divisors (6,000 IATA, 5,000 express, 4,500, 4,000, and US 166/139), and shows the chargeable weight - the greater of actual and volumetric - with a badge for which one applies.
Key Benefits
- Know the billable weight before you print the label
- Compare IATA and courier divisors side by side
- Metric and imperial units in one place
- Instant, private, and free - pure client-side math
Common Use Cases
- •Quoting shipping costs for e-commerce orders
- •Checking whether repacking into a lighter box lowers the bill
- •Auditing carrier invoices for dim-weight charges
- •Planning air freight shipments under IATA rules
- •Teaching teams how carriers compute chargeable weight
Calculate Dimensional Weight
- Pick your units: Choose metric (centimeters and kilograms) or imperial (inches and pounds) to match how you measured the box.
- Enter the box dimensions: Type length, width, and height of the packed box - always measure the outer dimensions at the widest points.
- Add actual weight and divisor: Enter the weight shown on your scale, then pick the divisor your carrier uses - 6,000 for IATA air freight or 5,000 for most express couriers.
- Read the chargeable weight: The calculator shows the volumetric weight, compares every common divisor, and badges whether you will be billed by actual or volumetric weight.
Key Features
- Metric and imperial units with matching divisor presets
- Carrier presets: 6,000 IATA, 5,000 express, 4,500, 4,000, 166, and 139
- Chargeable weight with a badge for which weight the carrier bills
- Comparison table of volumetric weight under every common divisor
- Instant client-side math - no sign-up, no data sent anywhere
- Clear presets and formulas so results are auditable