USPS shipping with ExperShip.
USPS reaches every address in the United States, including PO Boxes and military addresses, and is often the go-to carrier for small, light parcels sent to homes. In ExperShip you see USPS rates next to your other carriers and buy the label in the same flow.
- carrier
- United States Postal Service
- network
- National carriers
- coverage
- Every U.S. address, incl. PO Boxes and APO/FPO/DPO
usps · in ExperShip
What you can do with USPS in ExperShip.
The same four steps as every other carrier, in the web app or through the API.
Compare rates
See USPS rates next to your other carriers on every order, so you can tell when USPS is the right pick and when it is not.
Buy and print labels
Buy USPS labels on the same screen you compare on. For international shipments, the customs documents are created with the label.
Track shipments
Follow USPS parcels in the same view as every other carrier, and keep buyers updated with tracking notifications.
Automate
Set shipping rules that send the right orders to USPS with the right service, so routine orders need no manual choice.
No USPS account needed: buy USPS labels at ExperShip's discounted rates from day one. Connecting your own USPS account is coming soon.
usps · services
USPS services.
The main USPS services sellers use, and what each one is for. Availability can depend on the origin, destination and package.
| Service | Type | What it is for |
|---|---|---|
| USPS Ground Advantage | U.S. domestic | The everyday ground service for packages up to 70 lb. It replaced First-Class Package Service and Parcel Select Ground in July 2023. Tracking included. |
| Priority Mail | U.S. domestic | Expedited domestic service with tracking. Available with your own packaging or with USPS Flat Rate boxes and envelopes. |
| Priority Mail Express | U.S. domestic | The fastest USPS domestic service, with a delivery commitment on most routes. |
| Priority Mail International | International | International parcel service with tracking to many countries. Final delivery is handled by the destination country's postal operator. |
| Priority Mail Express International | International | The fastest USPS international service, for time-sensitive shipments. |
| First-Class Package International Service | International | Economical option for small, light international packages, within a low weight limit. |
| USPS Returns | Returns | Prepaid return labels you can send to buyers, so returns come back through the postal network. |
best for
When USPS is a good fit.
- Small, lightweight parcels going to residential addresses
- PO Boxes and military APO/FPO/DPO addresses
- Sellers who want free Priority Mail packaging from USPS
- Low-value international parcels where speed matters less than cost
strengths
Where USPS stands out.
- Delivers to every U.S. address, including PO Boxes and military addresses
- No residential delivery surcharge, unlike UPS and FedEx
- Saturday delivery is part of regular service
- Free Priority Mail and Priority Mail Express packaging
usps · rules
Things to know before you ship with USPS.
Carrier rules that affect what you pay and where you can deliver. Exact fees and surcharges change, so check the current USPS rate guide for amounts.
- 01
Dimensional weight applies to Priority Mail and Ground Advantage packages larger than one cubic foot. Smaller boxes are priced on actual weight.
- 02
The maximum weight is 70 lb, and size limits are set by length plus girth, so very large boxes may need UPS or FedEx.
- 03
Nonstandard fees can apply to long or oversized packages, so measure accurately before you buy a label.
- 04
Flat Rate boxes and envelopes cost the same to any U.S. address up to 70 lb, which suits heavy items in small boxes.
- 05
International USPS shipments need a customs declaration, and the destination country's post handles final delivery and tracking updates.
compare
USPS vs other carriers.
ExperShip shows these carriers side by side on each order, so you do not have to decide once for every shipment.
UPS
USPS is usually strongest for light parcels to homes and PO Boxes. UPS tends to fit heavier or larger boxes and business addresses better.
UPS with ExperShip →USPS vs FedExFedEx
USPS covers PO Boxes and military addresses that FedEx cannot. FedEx Ground and Home Delivery often suit heavier residential parcels.
FedEx with ExperShip →USPS vs DHL ExpressDHL Express
For international parcels, USPS services are economical but slower. DHL Express is built for fast, door-to-door international delivery.
DHL Express with ExperShip →Read the full comparison: USPS vs UPS vs FedEx →
faq
USPS questions.
Which USPS services can I use in ExperShip?
ExperShip shows USPS Ground Advantage, Priority Mail and Priority Mail Express for domestic parcels, plus USPS international services, next to rates from your other carriers.
What happened to USPS First-Class Package Service?
In July 2023 USPS replaced First-Class Package Service and Parcel Select Ground with USPS Ground Advantage. If you used First-Class Package for light parcels, Ground Advantage is the service to use now.
Can I ship to PO Boxes and military addresses?
Yes, with USPS. USPS delivers to PO Boxes and APO/FPO/DPO military addresses. UPS and FedEx generally cannot deliver to standard PO Boxes.
Does USPS charge for dimensional weight?
Only for larger packages. For Priority Mail and Ground Advantage, dimensional weight applies when a package is bigger than one cubic foot. Below that, you pay by actual weight.
Does USPS add a residential surcharge?
No. USPS does not add a residential delivery surcharge, which is one reason it is popular for parcels going to homes.
get started