How much does mail cost per ounce

The cost of mailing an item in the United States depends on several factors, including the weight, size, and destination of the item, as well as the type of mail service used. Here are the current rates for First-Class Mail, Priority Mail, and Priority Mail Express:

First-Class Mail

• Letters (1 oz or less): $0.55
• Large Envelopes (1 oz or less): $0.92
• Flats (1 oz or less): $1.16
• Additional ounces: $0.20 per ounce

Priority Mail

• Small Flat Rate Box: $7.95
• Medium Flat Rate Box: $14.35
• Large Flat Rate Box: $19.95
• Regional Rate Box A: $12.35
• Regional Rate Box B: $14.35
• Additional ounces: $0.20 per ounce

Priority Mail Express

• Small Flat Rate Box: $25.50
• Medium Flat Rate Box: $34.50
• Large Flat Rate Box: $44.50
• Regional Rate Box A: $29.50
• Regional Rate Box B: $34.50
• Additional ounces: $0.20 per ounce

International Mail

• First-Class Mail International: $1.20 per ounce (minimum $1.20)
• Priority Mail International: $24.95 (small flat rate box), $34.95 (medium flat rate box), $44.95 (large flat rate box)

Note that these rates are subject to change, so it's always a good idea to check the official USPS website for the most up-to-date information.

It's also worth noting that there may be additional fees for services such as tracking, insurance, and delivery confirmation.