Several mailing services are available to fit your needs.
Shape + Speed + Cost = Service
SHAPE
SPEED
COST
SERVICE
70 lbs or less
1-2 daysmoney-back guarantee
$$$based on weight
Express Mail
70 lbs or less
2-3 dayson average
$$based on weight, shape, anddistance
Priority Mail
13 oz or less
3.5 oz or less
1-3 days
$based on weight and shape
First-Class Mail
70 lbs or less
2-9 days*
$based on weight and distance
Parcel Post
70 lbs or less
2-9 days*
$based on weight
Media Mail

* Excluding Alaska and Hawaii.


Express Mail®Letters, large or thick envelopes, tubes, and packages containing mailable items can be sent using Express Mail. This money-back guaranteed service includes tracking and insurance up to $100. Additional insurance up to $5,000 may be purchased for merchandise. Delivery to most destinations is available 365 days a year, with no extra charge for Saturday, Sunday, and holiday delivery. Express Mail envelopes and boxes are available at the Post Office™.
Priority Mail®Large or thick envelopes, tubes, and packages containing mailable items can be sent using Priority Mail. This service is typically used to send documents, gifts, and merchandise. Priority Mail envelopes and boxes are available at the Post Office™.
First-Class Mail®Postcards, letters, large envelopes, and small packages can be sent using First-Class Mail. This service is typically used for personal and business correspondence and bills.
Parcel Post®Small and large packages, thick envelopes, and tubes containing gifts and merchandise can be sent using Parcel Post.
Media Mail™Small and large packages and thick envelopes can be sent using Media Mail. Contents are limited to books, manuscripts, sound recordings, recorded videotapes, and computer-readable media (not blank). Informally called "Book Rate," Media Mail cannot contain advertising, except eligible books may contain incidental announcements of books. Media Mail is usually less expensive than Parcel Post.
Speed depends on distance. Mail takes longer to travel across the country than to travel across town.
Flat-Rate Envelopes let you send your document for one low price regardless how much the item weighs. Flat-rate envelopes are available for Express Mail at $16.25 and Priority Mail at $4.60. Purchase flat-rate stamps in advance to save time when you’re ready to mail.
Priority Mail Flat Rate Boxes are $8.95 to any U.S. destination regardless of the actual weight of the piece. They are available in two convenient sizes.
Calculate Postage for the shape, weight, and destination of your mail online or by calling 1·800·ASK·USPS®.