About this calculator

Screen packed parcel dimensions and gross weight against the selected service family’s modeled maximums and listed fee triggers. Outside measurements are rounded upward to inches before size arithmetic.

Inputs

How to use this calculator

Package group

  1. Outer length (in)Outer tendered dimensions including packaging and projections.
  2. Outer width (in)Outer tendered dimensions including packaging and projections.
  3. Outer height (in)Outer tendered dimensions including packaging and projections.
  4. Gross package weight (lb)Gross weight including all packaging and pallet tare.
  5. Identical piecesPositive whole count. Add a row for different dimensions or per-piece weight.

Shared inputs

  1. U.S. parcel serviceChoose the exact service family. Limits and fee conditions vary by service and contract.

Enter the shipment or scenario values, then select Calculate result.

Method

Formula and variables

Round each measured outer side up to a whole inch. Longest side = L; girth = 2 × (middle side + shortest side); combined size = L + girth; cube = L × W × H. UPS and FedEx screens show hard limits separately from large-package/oversize triggers. USPS Ground Advantage checks its 70 lb and 130 in limits, the >108 through 130 in oversize-price range, and the applicable nonstandard length/cube fee thresholds.

Outer length (in)
Outer tendered dimensions including packaging and projections.
Outer width (in)
Outer tendered dimensions including packaging and projections.
Outer height (in)
Outer tendered dimensions including packaging and projections.
Gross package weight (lb)
Gross weight including all packaging and pallet tare.
Identical pieces
Positive whole count. Add a row for different dimensions or per-piece weight.
U.S. parcel service
Choose the exact service family. Limits and fee conditions vary by service and contract.

Interpret the result

Passing a maximum is separate from triggering a size-related fee. The screen reports named triggers without estimating fee amounts, postage or carrier acceptance.

Outputs: Longest side, girth, combined size and fee triggers

Rule screen only; it does not calculate postage, fee amounts, dimensional weight, delivery eligibility, seasonal demand charges, or every service/contract exception. USPS nonstandard fee flags exclude packages in the oversize-price range. Confirm the current carrier guide and tendered service before shipping.

Worked example

Check the arithmetic

This example uses the starting values shown above. The arithmetic below is calculated independently of the interactive result.

Work through the calculation

  1. For 100 × 20 × 10 in, girth = 2 × (20 + 10) = 60 in.
  2. Length plus girth = 100 + 60 = 160 in; cube = 100 × 20 × 10 = 20,000 in³.
  3. At 60 lb under the default UPS screen, maximums pass while the listed >96 in, >130 in combined-size and >17,280 in³ fee triggers require review.

Compare the displayed result

Expected displayed result: Maximums pass; review size-related fees

FAQs

Can a parcel pass maximums and still need fee review?

Yes. Large-package or oversize triggers can occur below hard service maximums. Read the trigger list separately from the maximums result.

Sources

These references support the methods or rules used on this page. Check the version effective for your shipment date and any applicable carrier terms or item-specific provisions.

Example inputs and options

Starting values are examples unless a field identifies a dated rule. Unit selectors convert only fields marked for conversion. Rates and model options keep the units and basis shown in their labels.

Outer length (in)
Example: 100
Outer width (in)
Example: 20
Outer height (in)
Example: 10
Gross package weight (lb)
Example: 60
Identical pieces
Example: 1
U.S. parcel service
Example: UPS domestic small packageOptions: UPS domestic small package; FedEx Ground / Home Delivery; USPS Ground Advantage