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Box calculator

Length and Girth Calculator

Enter three package sides in any order. ParcelCal treats the longest side as length and wraps girth around the other two sides.

Live calculator

Calculate length + girth

CALCULATES LOCALLY · NO UPLOAD
FORMULA
Length + Girth = Longest Side + 2 × (Other Side 1 + Other Side 2)
COMBINED LENGTH + GIRTH-
Length (longest side)-
Girth-
Cross-section sides-
Reference comparison-
Limit comparisons do not guarantee carrier acceptance. Measure the finished package at extreme dimensions.
Method

How this calculation works

Limit presets are comparisons, not acceptance guarantees. Packaging shape, service, and carrier measurement control. ParcelCal runs the calculation in your browser; no package or shipment information is uploaded.

FORMULA
Length + girth = Longest side + 2 × (Other side 1 + Other side 2)

Limit presets are comparisons, not acceptance guarantees. Packaging shape, service, and carrier measurement control.

Worked example

30 × 20 × 10 in package

  1. 1.Longest side (length): 30 in
  2. 2.Girth: 2 × (20 + 10) = 60 in
  3. 3.Combined: 30 + 60

Length plus girth is 90 in.