In this article, we will break down the weight limits of popular USPS services on our platform to save you time searching. The maximum USPS accepts for mailable parcels is 70 lbs (31 kg), but it can be a lot lower, depending on the service.
| USPS Service | Weight limit |
| USPS - First Class | 1 lb |
| USPS - First Class International | 4 lbs |
| USPS - Priority Mail | 70 lbs |
| USPS - Priority Mail Express | 70 lbs |
| USPS - Priority Mail International | 70 lbs |
| USPS - Priority Mail Express International | 70 lbs |
| USPS - Parcel Select | 70 lbs |
| USPS - Flat Rate Priority Mail International - Large | 20 lbs |
|
USPS - Flat Rate Priority Mail International - Small |
4 lbs |
For more information on USPS weight limits, we suggest visiting the USPS Sending Packages page.