USPS Ground Advantage® service is an affordable and reliable way to send packages inside the U.S. Ship to all 50 states, U.S. military bases, territories, possessions, and Freely Associated States. Ground Advantage is the primary option for sending hazardous materials (HAZMAT) that can't go by air. Prices start at $7.90 at a Post Office™ location. Ship online with Click-N-Ship® and get lower Commercial Rates. Businesses can get additional savings by opting in to the Business Rate Card.

USPS Ground Advantage® service is an affordable and reliable way to send packages inside the U.S. Ship to all 50 states, U.S. military bases, territories, possessions, and Freely Associated States. Ground Advantage is the primary option for sending hazardous materials (HAZMAT) that can't go by air. Prices start at $7.90 at a Post Office™ location. Ship online with Click-N-Ship® and get lower Commercial Rates. Businesses can get additional savings by opting in to the Business Rate Card. Ground Advantage packages are delivered in 2-5 days and USPS Tracking® service is included in the price. The service is USPS's best-priced option for items up to 15.999 oz, based on weight (rounded up to 4 oz, 8 oz, 12 oz, and 15.999 oz) and zone (distance). Packages greater than 15.999 oz are charged by the pound up to 70 lbs (rounded up). Payment options include stamps, self-service kiosk, Click-N-Ship, or at a Post Office. The service includes forwarding, undeliverable as addressed (UAA), and return to sender (RTS) at no additional cost. USPS Label Delivery service allows customers to print labels online for an extra $1.65 per label. Free Package Pickup is available at home or office locations. $100 insurance is included for both outbound and return shipments, and customers can purchase up to $5,000 in additional coverage against loss or damage for merchandise. Ground Advantage is the primary option for sending hazardous materials (HAZMAT) that are only mailable using ground transportation. Weight, Size, and Shape Requirements: Flats (Large Envelopes) being treated as packages require Ground Advantage pricing if they are more than 15" long, 12" high, or 3/4" thick; rigid (cannot bend); or not uniformly thick (lumpy). Packages up to 15.999 oz use price tiers of up to 4 oz, up to 8 oz, up to 12 oz, and up to 15.999 oz, rounded up to the nearest tier. Items over 15.999 oz round up to 1 lb and pay pound-rate prices. Packages over 15.999 oz and up to 70 lbs have a maximum weight of 70 lbs. For items over 15.999 oz (which rounds up to 1 lb), rates are by the pound (lb), rounded up. Maximum combined length and girth (girth is the distance around the thickest part) is 130 inches. Additional Package Fees apply for large and lightweight packages, nonstandard sizes, shapes, materials, or perishable items. Dimensional (DIM) weight rates apply to large, lightweight packages larger than 1 cubic foot (1,728 cubic inches). Calculate DIM weight by multiplying Length x Width x Height and dividing by 139 to get the DIM weight in pounds. Any fraction of an inch must be rounded up to the next whole inch. Nonstandard fees apply to packages that are harder for USPS to process: between 22 and 30 inches long ($4.50); more than 30 inches long ($10.00); more than 2 cubic feet/$3,456 cubic inches ($21.00); or nonstandard shape or material ($4.00). A $7.50 handling fee applies for packages with live animals or perishable items such as food and plants. HAZMAT shipments have a $0.00 handling fee, though incorrectly labeled commercial shipments may be subject to a HAZMAT noncompliance fee. Specific regulations and standards apply for mailing restricted, prohibited, and hazardous materials, including cigarettes and smokeless tobacco. Packages shipped to a Military Post Office (APO/FPO/DPO) are charged at domestic prices but require a customs form and have specific restrictions. Expected delivery is 2-5 days for mailable items up to 70 lbs, though packages going to certain places including Alaska, Hawaii, and offshore destinations, or containing hazardous materials or live animals may receive slower service.