How much stamp needed for regular mail

The cost of postage for regular mail in the United States depends on the weight and size of the mailpiece, as well as the destination. Here are the current rates for First-Class Mail, which is the most common type of mail:

Letters (1 oz or less)

• Domestic (within the United States): $0.55
• International (to Canada, Mexico, and other countries): $1.20

Large Envelopes (1 oz or less)

• Domestic (within the United States): $0.95
• International (to Canada, Mexico, and other countries): $1.45

Flats (1 oz or less)

• Domestic (within the United States): $1.20
• International (to Canada, Mexico, and other countries): $2.05

Packages (1 oz or less)

• Domestic (within the United States): $3.50
• International (to Canada, Mexico, and other countries): $6.95

Additional Ounces

• Each additional ounce: $0.15

Special Services

• Tracking: $0.60 (domestic), $1.20 (international)
• Signature Confirmation: $3.45 (domestic), $6.95 (international)
• Certified Mail: $3.45 (domestic), $6.95 (international)

Note: These rates are subject to change, so it's always a good idea to check the official USPS website or consult with a postal worker for the most up-to-date information.

I hope that helps!