Compare calculators

Both calculators run independently — change the inputs on either side to compare results.

Container Loading Calculator

Calculate how many cargo units fit inside a 20ft, 40ft, or 40ft HC shipping container. Use this when planning a shipment to maximize space and reduce per-unit freight costs.

Container Type

Cargo Unit Length (meters)

Cargo Unit Width (meters)

Cargo Unit Height (meters)

Loading Efficiency

Fill in the required fields to see your result.

Shipping

Dimensional Weight Calculator

Compute the billable weight of a shipment as the greater of actual weight or dimensional (volumetric) weight, using the carrier-specific DIM divisor. Useful for FedEx, UPS, USPS, and DHL parcels where bulky-but-light packages get charged on volume rather than mass.

Package Length (inches)

Package Width (inches)

Package Height (inches)

Actual Weight (lbs)

Shipping Carrier

Fill in the required fields to see your result.

Key differences

	Container Loading Calculator	Dimensional Weight Calculator
Category	Shipping	Shipping
Inputs required	5	5
Result	Maximum Units (units)	Billable Weight (lbs)
What it does	Calculate how many cargo units fit inside a 20ft, 40ft, or 40ft HC shipping container. Use this when planning a shipment to maximize space and reduce per-unit freight costs.	Compute the billable weight of a shipment as the greater of actual weight or dimensional (volumetric) weight, using the carrier-specific DIM divisor. Useful for FedEx, UPS, USPS, and DHL parcels where bulky-but-light packages get charged on volume rather than mass.