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Box calculator

最長辺＋胴回り計算ツール

3辺を入力するだけで最长辺と胴回りを判定し、規定制限と比較します。

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

計算方法と数式

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

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.