How many stamps for a 7x9 bubble mailer

The number of stamps needed for a 7x9 bubble mailer depends on the weight and destination of the package. Here's a general guideline:

• For a 7x9 bubble mailer weighing up to 1 ounce (0.5 oz to 1 oz), you'll need:
  • 1 first-class stamp (currently $0.55) for domestic mail (within the United States)
  • 1 international first-class stamp (currently $1.20) for international mail
• For a 7x9 bubble mailer weighing 1-2 ounces (1 oz to 2 oz), you'll need:
  • 2 first-class stamps (currently $1.10) for domestic mail
  • 2 international first-class stamps (currently $2.40) for international mail
• For a 7x9 bubble mailer weighing 2-3 ounces (2 oz to 3 oz), you'll need:
  • 3 first-class stamps (currently $1.65) for domestic mail
  • 3 international first-class stamps (currently $3.60) for international mail

Keep in mind that these are general guidelines and the actual postage required may vary depending on the specific weight and dimensions of your package, as well as any additional services you may need (such as tracking or insurance).

It's always a good idea to weigh your package and check the USPS website or consult with a postal worker to determine the exact postage required.