Usps 1st class mail cost

The cost of USPS 1st Class Mail varies depending on the weight, size, and destination of the mailpiece. Here are the current rates for USPS 1st Class Mail:

Letters (1 oz or less)

• Domestic: $0.55
• International: $1.20

Large Envelopes (1 oz or less)

• Domestic: $0.95
• International: $1.85

Packets (1 oz or less)

• Domestic: $1.00
• International: $2.05

Flat Rate Envelopes

• Domestic: $7.50 (up to 13 oz)
• International: $15.50 (up to 13 oz)

Weight-Based Rates

• For mailpieces over 1 oz, the cost is based on the weight of the mailpiece:
  • 1-2 oz: $0.70
  • 2-3 oz: $0.85
  • 3-4 oz: $1.00
  • 4-5 oz: $1.15
  • 5-6 oz: $1.30
  • 6-7 oz: $1.45
  • 7-8 oz: $1.60
  • 8-9 oz: $1.75
  • 9-10 oz: $1.90
  • 10 oz or more: $2.05

Additional Fees

• Postage due: $0.30 (if the recipient refuses to pay the postage due)
• Return postage: $0.30 (if the mailpiece is returned to the sender)

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