You can pay extra to send your letter using Priority Mail Express ® or Priority Mail ® service. You can get delivery confirmation by adding Certified Mail ® or Registered Mail ® service. (You can even combine it with Return Receipt if you want the recipient's signature.)

USPS postage rates offer low-cost mailing and shipping prices for domestic & international customers. See Forever postage stamp prices and other postage rates.

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.

Using the correct ZIP Code helps to direct your mail more efficiently and accurately. Envelopes Letters, bills, greeting cards, and other documents can be sent in standard white, manila, or recycled paper envelopes.

To have the Postal Service hold your mail up to 30 days, visit www.usps.com, call 1·800·ASK·USPS, or fill out a “Hold Mail” form at the Post Office. When you return, you can either pick up your mail from the Post Office or have it delivered to your home.

TIP: As a rule of thumb, you can send a 1 oz letter (4 sheets of regular printer paper and a business-sized envelope) or a postcard—to any country in the world—for 1 First-Class Mail ® Global Forever stamp (currently $1.65). You can also use any other combination of stamps that adds up to $1.65.

Letters, large or thick envelopes, tubes, and packages containing mailable items can be sent using Priority Mail Express. This money-back guaranteed service includes tracking and insurance up to $100.

For letter-shaped mail, value must be $0.00. What's the Date you plan to mail the item? What's the Time you plan to mail the item? What are you Sending? Only Nonnegotiable Document(s) Item ID Value HS Tariff No Country of Origin Item Category Item Sub Category Action + Add Another Item ...

First-Class Mail is a fast, low-cost way to send envelopes and postcards. See First-Class Mail and Forever stamp prices for a letter and postcard.

What is the weight of your mail piece? Pounds. Ounces. Please select from the following options. View Dimensions ... Package. Large Package Any dimension over 12 inches (30.48 cm) × Domestic Dimensions. Letter. Property Minimum Maximum; Length: 5 inches: 11-1/2 inches: Height: 3-1/2 inches: 6-1/8 inches: Thickness: 0.007 inch: 1/4 inch: Large ...