Mailing stamp cost

The cost of a mailing stamp in the United States varies depending on the weight and size of the mailpiece, as well as the destination. Here are the current rates for First-Class Mail stamps:

First-Class Mail Letters

• 1 oz (standard letter): $0.55
• 2 oz: $0.70
• 3 oz: $0.85
• 3.5 oz: $1.00

First-Class Mail Flats

• 1 oz (standard flat): $1.00
• 2 oz: $1.15
• 3 oz: $1.30
• 3.5 oz: $1.45

First-Class Mail International

• 1 oz (standard letter): $1.20
• 2 oz: $1.35
• 3 oz: $1.50
• 3.5 oz: $1.65

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
• Regional Rate Box A: $26.95
• Regional Rate Box B: $34.95

Additional Services

• Postage due: $0.05 to $0.15
• Certified Mail: $3.45 to $4.45
• Return Receipt: $1.45 to $2.45
• Signature Confirmation: $3.45 to $4.45

Please note that these rates are subject to change, so it's always a good idea to check the official website of the United States Postal Service (USPS) for the most up-to-date information.