USPS has express and standard mail services to fit your needs. Depending on what items you're sending (and when you want them delivered), choose based on: Fastest delivery speed, Most affordable price, Shipping online vs. at a Post Office location.

USPS has express and standard mail services to fit your needs. Depending on what items you're sending (and when you want them delivered), choose based on: Fastest delivery speed, Most affordable price, Shipping online vs. at a Post Office location. Compare Mail Services: Compare USPS mail services by starting retail prices, delivery speed, and more. Most services automatically include USPS Tracking (except First-Class Mail service), and you can add insurance and extra services. Save on Shipping: If you're using Priority Mail Express, Priority Mail, or USPS Ground Advantage service, you can ship online with Click-N-Ship and get lower Commercial Rates. Businesses can get additional savings by opting in to the Business Rate Card. Fastest Delivery Speed services include Priority Mail Express (1-3 days, from $35.90 for Flat Rate Envelope or $35.65 by weight/zone, up to 70 lbs, includes up to $100 insurance) and Priority Mail (2-3 days, from $12.90 for Flat Rate Envelope, from $13.65 for USPS Shipping Box, from $11.00 for own box by weight/zone, up to 70 lbs, includes up to $100 insurance). Simple, Affordable, Reliable services include USPS Ground Advantage (2-5 days, from $7.90, up to 70 lbs, includes up to $100 insurance). Postcards & Envelopes services include First-Class Mail (1-5 days, from $0.61 for postcards, from $0.78 for letters, from $1.63 for large envelopes, letters up to 3.5 oz, large envelopes up to 13 oz, no tracking for letters unless buying add-on services). Media Mail is available for 2-8 days delivery at prices starting from $4.47. Eligible items include books (at least 8 pages), 16-millimeter or narrower films, printed music and test materials, video and sound recordings, playscripts and manuscripts, printed educational reference charts, medical loose-leaf pages and binders, and computer-readable media. Maximum weight is 70 lbs. Video games, computer drives, and digital drives do not qualify. Additional Package Fees apply for dimensional weight (packages larger than 1 cubic foot with DIM weight calculation), nonstandard packages, and live animals or perishables. Dimensional weight is calculated by multiplying Length x Width x Height and dividing by 166. Nonstandard length fees apply for packages between 22-30 inches (add $4.50) or more than 30 inches (add $10.00 for Ground Advantage or Priority Mail, $21.00 for Priority Mail Express). Nonstandard characteristics fees of $4.50 apply for cylindrical tubes, cans, wooden or metal boxes, or packages with shifting contents. Nonstandard volume fees of $21.00 (Ground Advantage) or $35.00 (Priority Mail Express or Priority Mail) apply for packages exceeding 2 cubic feet. Live animal and perishable handling fees range from $7.50 to $15.00 depending on service type.