Help me to decide how to choose among 1-ounce, 2-ounce, and 3-ounce Forever Stamps for U.S. First-Class Mail

💌 1-Ounce Forever Stamp

Use when:

  • Your letter weighs up to 1 ounce

  • This is the most common stamp
    Examples:

  • Standard business letter

  • Birthday card

  • Single-page legal or personal mail

💲 Current rate (2025): $0.73

💌 2-Ounce Forever Stamp

Use when:

  • Your letter weighs more than 1 ounce but up to 2 ounces
    Examples:

  • Wedding invitations with RSVP cards

  • A letter with 3–4 pages

  • Legal documents with return envelope

💲 Current rate (2025): $1.01

💌 3-Ounce Forever Stamp

Use when:

  • Your letter weighs more than 2 ounces but up to 3 ounces
    Examples:

  • Multi-page contracts

  • Invitations with inserts

  • Small booklets or brochures

💲 Current rate (2024): $1.29

🧠 Tips to Remember:

  • Each additional ounce over 1 oz costs $0.24 more, so these stamps are just convenient pre-priced options.

  • You can also mix stamps — for example:

    • 1-ounce stamp + $0.24 = 2 ounces

    • 1-ounce stamp + 2×$0.24 = 3 ounces

  • It’s better to weigh your envelope with a postal scale to avoid underpaying.

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