How to Calculate Girth Plus Length of a Parcel

  1. Measure the three parcel dimensions in centimeters:
    Example: 60 cm (Length) x 40 cm (Width) x 35 cm (Height).
  2. Add the measurements of the two smallest dimensions together. Multiply the result by two. This is the girth of your package.
    Example: 40 cm (Width) + 35 cm (Height) = 75 cm. 75 cm x 2 = 150 cm (Girth).
  3. Now simply take the longest dimension and add this to the package girth. The result is the combined length and girth of your parcel.
    Example: 60 cm (Length) + 150 cm (Girth) = 210 cm (Combined Length and Girth).