The weight, dimensional weight, and size limits set forth in this section are for Global Express Guaranteed service shipments containing documents and non-documents unless otherwise noted in the Individual Country Listings.

The maximum weight is 70 pounds.

Postage for items mailed in USPS-produced Global Express Guaranteed envelopes is based on the weight of the piece. For items weighing 1/2 pound or less, the postage is the 1/2-pound price. For all other items, the postage is charged per pound or fraction thereof — any fraction of a pound is rounded up to the next whole pound.

Postage for items not mailed in USPS-produced Global Express Guaranteed envelopes is based on the dimensional weight, as calculated under 216.4, or the per-pound weight or fraction thereof rounded up to the next whole pound price, whichever is greater.

Follow these steps to determine the dimensional weight for a rectangular–shaped parcel:

- Determine the length, width, and height in inches. Round off each measurement to the nearest whole inch.
- Multiply the length by the width by the height.
- Divide the result by 166. For weights less than 0.5 pound, round up to 0.5 pound. For all other weights, round up to the next whole pound.

Follow these steps to determine the dimensional weight for a nonrectangular-shaped parcel:

- Determine the length, width, and height in inches. Measure the length, width, and height at their extreme dimensions. Round off each measurement to the nearest whole inch.
- Multiply the length by the width by the height.
- Multiply the result by an adjustment factor of 0.785.
- Divide the result by 166. For weights less than 0.5 pound, round up to 0.5 pound. For all other weights, round up to the next whole pound.

An envelope or package must be large enough to hold on its face the postage and the plastic pouch that carries the Global Express Guaranteed Air Waybill/Shipping Invoice (shipping label). The shipping label is approximately 5.5 inches high and 9.5 inches long, and the plastic pouch that carries it is approximately 7 inches high and 12 inches long.

Length and girth combined may not exceed 108 inches. Individual dimensions may not exceed 46 inches in length, 35 inches in width, and 46 inches in height.