How much to mail large envelope

The cost to mail a large envelope, also known as a flat rate envelope, depends on the weight and size of the envelope, as well as the destination. Here are the current rates for large envelopes in the United States:

USPS Flat Rate Envelopes

• Large Flat Rate Envelope (12 1/2 x 15 1/2 inches): $13.75
• Regional Rate Box A (13 5/8 x 12 3/8 x 2 3/4 inches): $14.35 (to destinations within the contiguous United States)

Weight-Based Pricing

• For envelopes weighing 1-2 pounds, the cost is:
  • First-Class Mail: $3.50 to $6.50 (depending on the destination)
  • Priority Mail: $7.50 to $14.50 (depending on the destination)
• For envelopes weighing 2-3 pounds, the cost is:
  • First-Class Mail: $6.50 to $10.50 (depending on the destination)
  • Priority Mail: $14.50 to $22.50 (depending on the destination)

International Rates

• For large envelopes sent internationally, the cost is:
  • First-Class Package International Service: $13.50 to $26.50 (depending on the destination)
  • Priority Mail International: $24.50 to $44.50 (depending on the destination)

Keep in mind that these rates are subject to change, so it's always a good idea to check the USPS website or consult with a postal worker for the most up-to-date information.

Additionally, you may want to consider the following factors when calculating the cost to mail a large envelope:

• Dimensional weight: If your envelope is large and lightweight, it may be charged based on its dimensional weight rather than its actual weight.
• Fuel surcharge: The USPS adds a fuel surcharge to all mail services, which can range from 5.5% to 6.5% of the total cost.
• Insurance: If you want to insure your envelope against loss or damage, you'll need to add an additional fee, which ranges from $2.50 to $5.00, depending on the value of the contents.