Key 2025 Stamp Prices at a Glance
The most common 2025 U.S. First-Class letter rate for a 1-ounce letter remained $0.66. Rates for additional ounces and larger envelopes vary. Below are widely reported 2025 prices for standard, additional-ounce, and postcard options offered by the United States Postal Service (USPS). Exact prices can differ slightly for nonprofit, bulk, or specialized mailers; always confirm with an official source before printing or scheduling a shipment.
| Item | Verified Detail | Source Type |
|---|---|---|
| First-Class letter (1 oz) | $0.66 | USPS public rate card |
| Additional ounce (each) | $0.24 | USPS public rate card |
| Postcard (single, non-greeting) | $0.66 outbound (domestic) | USPS public rate card |
| Domestic Large Envelope (1 oz) | $1.50 | USPS public rate card |
| International First-Class Package (up to 4 oz) | $34.95 | USPS international price list |
Why 2025 Stamp Prices Matter for Senders
Understanding 2025 stamp prices helps you choose the right mail class, avoid returned mail, and budget accurately for personal or business volumes. Using an incorrect rate can cause delays or require additional postage at the post office. Accurate pricing supports proper postage allocation, especially for high-volume mailers who rely on precise cost forecasting.
Common Stamp Types and Uses in 2025
First-Class Forever Stamps
First-Class Forever Stamps remain valid for 1-ounce letters regardless of future price increases. They are widely used for personal correspondence, small bills, and light documents. In 2025, the domestic rate for a 1-ounce letter is $0.66. If prices change, existing Forever Stamps still cover the new amount, making them a flexible choice for many senders.
Additional Ounce Stamps and Postage Due
Letters heavier than 1 ounce require extra stamps: $0.24 per additional ounce in 2025. For postcards and large envelopes (flats), rates differ by weight and destination. Using a combination of Forever and additional-ounce stamps ensures you meet exact postage requirements without overpaying.
Postcards and Greeting Cards
In 2025, mailing a standard postcard within the United States costs $0.66. Greeting cards that meet size and weight criteria can often be sent as First-Class letters using a Forever stamp. Heavier or oversized cards may fall into the flats category and be priced accordingly.
International and Business Mail Considerations in 2025
International rates vary by destination, with popular regions generally costing more. In 2025, sending a lightweight international package (up to 4 oz) via First-Class mail typically costs about $34.95. Business mail options, such as Standard Mail, can lower per-piece costs for high-volume senders but require proper preparation and accurate postage based on weight and destination.
How to Verify Exact 2025 Postage Rates
Always confirm current rates using trusted channels before purchasing stamps or scheduling a shipment. Reliable sources include the USPS official website, the USPS Postage Price Calculator, and printed rate brochures available at post offices. For the most accurate pricing, enter exact weight, dimensions, origin, and destination into the official calculator.
- Check the item’s class (First-Class, Standard Mail, Package Services).
- Measure weight and dimensions precisely; prices change at each threshold.
- Confirm whether additional services (insurance, tracking) are needed.
Practical Takeaways for Sending Mail in 2025
Use Forever stamps for flexibility on 1-ounce letters, and add appropriate extra-ounce stamps for heavier items. For postcards and flats, verify specific 2025 postcard and flat rates to avoid underpaying. For international items, review country-specific pricing early and include required customs forms. When in doubt, weigh your item and use an official rate tool to lock in the correct amount before you go to the post office or schedule a pickup.
Summary
In 2025, a common 1-ounce First-Class letter stamp cost $0.66, with additional ounces at $0.24 each. Postcards are typically $0.66, and larger envelopes start around $1.50 for the first ounce. International small packages start near $34.95 depending on destination and weight. These rates are subject to change; confirm current prices via official USPS sources to ensure accurate postage and timely delivery.