Postage calculator first class mail

Here is a postage calculator for First Class Mail in the United States:

Weight-Based Pricing

• Letters (1 oz or less): $0.55
• Large Envelopes (1 oz or less): $0.55
• Flats (1 oz or less): $1.00
• Cards (1 oz or less): $0.55

Additional Ounces

• Each additional ounce: $0.15

Maximum Weight

• Letters: 3.5 oz
• Large Envelopes: 13 oz
• Flats: 13 oz
• Cards: 3.5 oz

Dimensions

• Length + Girth (perimeter): 22 inches

Special Handling

• Priority Mail Express: $25.50 (1-day delivery)
• Signature Confirmation: $3.45 (optional)
• Certified Mail: $3.45 (optional)

Calculate Your Postage

To calculate the postage for your First Class Mail item, follow these steps:

1. Determine the weight of your item in ounces.
2. Check the maximum weight limit for your item type (letters, large envelopes, flats, or cards).
3. If your item weighs more than the maximum weight limit, calculate the additional postage for each additional ounce.
4. Add any special handling fees (Priority Mail Express, Signature Confirmation, or Certified Mail).
5. Use the postage calculator below to determine the total postage cost.

Postage Calculator

• Weight (oz): _____
• Item Type: _____ (letters, large envelopes, flats, or cards)
• Additional Ounces: _____ (if applicable)
• Special Handling Fees: _____ (if applicable)
• Total Postage: $ _____

Note: This calculator is for informational purposes only and is subject to change. For the most up-to-date pricing information, please visit the USPS website or consult with a postal service representative.