How much are mailing stamps 2018

According to the United States Postal Service (USPS), the prices for mailing stamps in 2018 were as follows:

• First-Class Mail Letter (1 oz):
  • Forever Stamp: $0.49
  • Additional Ounce: $0.21
• First-Class Mail Large Envelope (1 oz):
  • Forever Stamp: $0.98
  • Additional Ounce: $0.21
• First-Class Mail Flat Rate Envelope:
  • Small: $6.65
  • Medium: $9.35
  • Large: $13.65
• First-Class Mail International Letter (1 oz):
  • Forever Stamp: $1.15
  • Additional Ounce: $0.21
• 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
• Priority Mail International:
  • Small Flat Rate Box: $24.95
  • Medium Flat Rate Box: $34.95
  • Large Flat Rate Box: $44.95

Please note that these prices are subject to change, and you should always check the USPS website or consult with a postal worker for the most up-to-date pricing information.