Package Sizes and Dimensions - USPS International | Overview
When shipping with USPS, packages must meet weight and size limits. The following tables detail international package types offered through the USPS.
Many of these supplies can be ordered for free through USPS.
Keep in mind that some packages are also subject to minimum dimensions. For instance:
- First-Class Package Rolls may be no smaller in length than 4", and the length plus twice the diameter combined may be no smaller than 6-3/4". Learn more about First-Class Package International Service limitations.
- Priority Mail parcels must have one side large enough to accommodate, postage, and the PS Form 2976-E (envelope for customs label), approximately 10-1/4" wide and 7-1/4" high. Learn more about Priority Mail International limitations.
International Package Size Chart
Package Type | Service | Max Weight | Max Dimensions* |
---|---|---|---|
Package | First-Class Package Service | 4 lbs | 24" Length, L+H+W= 36" |
Priority Mail | 4-70 lbs (varies by country) |
Length + Girth** < 108" (varies by country) |
|
Priority Mail Express | 22-70 lbs (varies by country) |
Length + Girth** < 79" (varies by country) |
|
Flat Rate Small Box | Priority Mail | 4 lbs | 8 5/8" x 5 3/8" x 1 5/8" |
Flat Rate Medium Box | Priority Mail | 20 lbs | 13 5/8" x 11 7/8" x 3 3/8" |
Flat Rate Large Box | Priority Mail | 20 lbs | 12" x 12" x 5 1/2" |
**Girth is a special dimensional measurement, equal to (2 x width) + (2 x height). Learn more about shipment dimensions.
International Envelope Size Chart
Envelope Type | Service | Max Weight | Max Dimensions |
---|---|---|---|
Letter | First-Class Mail | 3.5 oz | 11 1/2" L x 1/4"W x 6 1/8" H |
Flat Rate Envelope | Priority Mail Priority Mail Express |
4 lbs | 12 1/2" x 9 1/2" |
Flat Rate Padded Envelope | Priority Mail Priority Mail Express |
4 lbs | 12 1/2" x 9 1/2" |
Flat Rate Legal Envelope | Priority Mail Priority Mail Express |
4 lbs | 15" x 9 1/2" |
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