Current postage depends on mail class, weight, dimensions, shape, destination, and extra services—not only on the number of stamps.
Common retail rates
| Mailpiece | Current price |
|---|---|
| Letter, 1 oz, stamped | 82¢ |
| Each additional letter ounce | 29¢ |
| Domestic postcard | 65¢ |
| Large envelope, 1 oz | $1.69 |
| International letter/postcard, base 1 oz | $1.75 |
Why shape matters
A square, rigid, uneven, oversized, or unusually thick envelope may not qualify for the ordinary letter price. Large envelopes and packages use different tables. Measure and weigh the finished mailpiece.
Stamps versus required postage
Stamps are a payment method. The required amount comes from the mailpiece classification. You may combine valid stamps, but the total value affixed must meet the applicable rate.
Frequently asked questions
What is the current Forever Stamp value?
82¢ for a qualifying one-ounce domestic letter.
How much is an extra ounce?
29¢ for each additional ounce on a qualifying single-piece domestic letter.
Are package prices included?
No. Package prices vary by service, weight, dimensions, and zone and should be calculated separately.
Sources and update note
- USPS Notice 123 — current price list
- USPS DMM 101 — physical standards
- USPS DMM 604 — postage payment methods
Rates and mailing standards can change. This page was reviewed in August 2026; verify the completed mailpiece when its weight, dimensions, shape, destination, or services are uncertain.
Explore this topic
Preview each focused page below to understand its core task before opening it. The topic center provides the overview; each child page handles its own detailed answer.
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