14x14x14 box dimensional weight

2,744 cubic inches (1.59 cu ft, 0.045 m³). Often used for lamps, small appliances.

Billable weight floor by carrier

Packed lighter than this, you are billed this weight anyway.

Stepping down to a 18 × 12 × 12 in box drops the UPS and FedEx floor to 19 lb, 1 lb less per parcel.

This box is over 1 cubic foot, so USPS applies dimensional weight.

Your box Rounded up by USPSWhole numbers, nothing rounded

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USPS · divisor 139

Priority Mail, Priority Mail Express, Ground Advantage, Parcel Select

Billed on dimensions

Billable weight

20lb

You pay for 12 lb of air on every box.

A box 1 inch smaller on every side bills 4 lb less.

What is the dimensional weight of a 14x14x14 box?

2,744 cubic inches ÷ 139 = 19.74, rounded up to 20 lb for UPS Daily Rates and FedEx. USPS also bills 20 lb since the July 2026 change.

How heavy does a 14x14x14 box need to be to avoid DIM charges?

With UPS and FedEx, anything packed under 20 lb is billed as 20 lb. Above that, you pay actual weight.

Carrier rules verified 2026-09-30. Methodology