Get real-time rates from the largest shipping network in the US
Show your customers accurate shipping rates automatically with our integration for USPS, the largest delivery network in United States.
Your store must use US Dollars for its currency and the United States, US Virgin Islands or Puerto Rico as the base country. It works with inches (in) and pounds (lbs), but other units can be converted automatically.
USPS calculates quotes worldwide.
Priority Mail Express
First Class International
Global Express Guaranteed (GXG)
Priority Mail International
Priority Mail International Flat Rate
We recommend using this extension in combination with our Stamps.com extension (separate purchase), which creates shipping labels based on real-time rates from USPS.
Enable/disable, edit the names of, and add costs to services
Pack items individually or using the built in box packer
The box packer is volume based. This provides good results in most cases but are never be as accurate as a real person packing a box (see BIN Packing Problem). Therefore, it is important to understand that packing results are as accurate as possible, and any anomalies should be acceptable.