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. 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. 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. Our best-priced service 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). Pay for postage using stamps, a self-service kiosk, Click-N-Ship, or at a Post Office. Includes forwarding, undeliverable as addressed (UAA), and return to sender (RTS) at no additional cost. USPS Label Delivery service: Even if you don't have a printer, you can still ship online using Click-N-Ship®—for an extra $1.65 per label, we'll print an outbound label and deliver it to you. Free Package Pickup at your home or office. $100 insurance is included (for both outbound and return shipments), and you can purchase up to $5,000 in additional coverage against loss or damage for merchandise. Primary option for sending hazardous materials (HAZMAT) that are only mailable using Ground Transportation. Weight, Size, & Shape Requirements: Flats (Large Envelopes) Being Treated as Packages require Ground Advantage pricing if more than 15" long, 12" high, or 3/4" thick; rigid (can't bend); or not uniformly thick (lumpy). Packages Up to 15.999 oz use price tiers: up to 4 oz; up to 8 oz; up to 12 oz; and up to 15.999 oz. Round 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 maximum weight of 70 lbs, with rates by the pound (lb), rounded up. Maximum combined length and girth is 130 inches. Additional Package Fees: Dimensional (DIM) weight rates apply to large, lightweight packages. If your package is larger than 1 cubic foot (1,728 cubic inches), multiply Length x Width x Height and divide by 166 to get the DIM weight in pounds. If the DIM weight is greater than the actual package weight, you'll need to pay the DIM weight price. Nonstandard Fee: Extra fees apply for packages that are harder to process. Fees vary based on length, volume, or characteristics: Between 22 and 30 inches long: add $4.50; More than 30 inches long: add $10.00; More than 2 cubic feet (3,456 cubic inches): add $21.00; Nonstandard shape or material: add $4.00. Live Animal & Perishable Handling Fee: $7.50 handling fee for packages with live animals or other perishable items including food and plants. Mailing Restrictions & Prohibitions: Specific regulations exist for restricted, prohibited, and hazardous materials, including cigarettes and smokeless tobacco. Packages shipped to Military Post Office (APO/FPO/DPO) pay domestic prices but require customs form and have specific restrictions. Expected delivery in 2–5 days for mailable items up to 70 lbs, though packages to Alaska, Hawaii, offshore destinations, or containing hazardous materials or live animals may receive slower service.