USPS Shipping Method


This plugin allows you to show your customers accurate shipping rates through integration with USPS.

For this plugin, your store must use US Dollars for its currency and have the United States, US Virgin Islands or Puerto Rico as the base country. The plugin works with inches and pounds as defaults, but other units can be converted automatically. USPS calculates quotes worldwide.

First Class
Flat Rate
Priority Mail
Priority Mail Express
Standard Post
Media Mail
Library Mail
First Class Mail
International Letters and Envelopes
Global Express Guaranteed (GXG)
Priority Mail International
Priority Mail International
Flat Rate
International Postcards

USPS Shipping Method has a built-in box packer which is volume based. This provides good results in most cases but is not as accurate as a real person packing a box (see BIN Packing Problem). Packing results are as accurate as possible, and any anomalies should be acceptable.

This plugin can be used in combination with the API which creates shipping labels based on real-time rates from USPS.

Plugin Features:

  • Display accurate shipping rates
  • Calculate quotes worldwide
  • Enable/disable, edit the names of, and add costs to services
  • Pack items individually or using the built-in box packer