Priority Mail is the United States Postal Service’s 1-3 day shipping for sending packages and parcels across the country. Shipping rate is determined by package weight, shipping distance (determines the shipping Zones), and the rate tier (Retail, Online Rate, and ShippingEasy Rate).
Postal Office (Retail) is the price you will get if you purchase the label for your Priority Mail shipment at a physical USPS Retail location.
Commercial Base (CBP) is also is known as “Commercial Base Pricing” which is a discounted rate tier for Priority Mail and other USPS Shipping Services that is available through online services like ShippingEasy’s Free Starter Plan. You can view a chart of all Commercial Base Prices or use the calculator to find example prices for CBP Priority Mail shipments.
Commercial Plus (CPP) is a special pricing tier, also called “Commercial Plus Pricing”, for online sellers with high shipping volume that have negotiated rates with the United States Postal Service OR sign up for any of ShippingEasy’s Paid Plans (Basic-Enterprise). You can view a chart of all Commercial Plus Prices or use the calculator above for CPP Priority Mail shipments.
To compare CPP rates to CBP rates, look over our comparison table of CPP vs CBP to get an idea of how much you can save per package.
To use the calculator, simply:
When determining rates based on weight, if the package weighs under half a pound it will always round up to .5 pounds. After the first half-pound (8 ounces), Priority Mail rounds up any weight of a package to the nearest pound. So if your package is 2 lbs. and 8 oz. (2.5 pounds) it will round up to 3lbs.
Try different Zones and package weights to see all of the available rates for Priority Mail.
USPS Priority Mail is the United States Postal Service's main service for shipping packages and parcels. There are many variations of Priority Mail, including Priority Mail Flat Rate, Priority Mail Regional Rate, Priority Mail Express, international Priority Mail services, and more. This calculator will provide rates for standard Priority Mail packages within the United States.
Packaging for Priority Mail: You may use your own packaging for USPS Priority Mail, or use boxes provided by the Postal Service for free either ordered online or at your local retail post office. If you decide to use your own packaging, the combined length and girth (thickest part of the package) is no more than a total of 108".
• Priority Mail and other USPS services qualify for free package pickup at your home and office.
• USPS Tracking is included on every Priority Mail package.
• Delivery is 1-3 days, usually arriving sooner if the package doesn't have to travel as far.
• Includes insurance with most packages (restrictions apply)
• No surcharges for fuel or residential, rural, or Saturday delivery.
• Flat Rate, Regional Rate, and Prepaid Pricing are all available.