USPS postage rates offer low-cost mailing and shipping prices for domestic & international customers. See Forever postage stamp prices and other postage rates. Wondering how many stamps per ounce you need in 2025? Here's the complete guide to current USPS postage rates, Forever Stamps, and practical mailing tips.
A standard 1-oz USPS letter costs $0.78 in 2025 (rates effective July 13, 2025). See postcard, extra-ounce, large envelope, and international letter prices. Letters weighing one ounce increase from 73 cents to 78 cents.
The additional ounce price for single letters jumps from 28 cents to 29 cents International postcards move from $1.65 to $1.70. Standard Letters (1 oz): One Forever stamp covers the cost of a standard commercial envelope weighing up to one ounce. Heavier Mail: If your letter weighs more than one ounce, a single Forever stamp won't cut it.
You will need to add "Additional Ounce" stamps or combine multiple Forever stamps to cover the total postage cost. Additional Postage 1¢ Multiple Stamp Formats $0.20 - $100.00 Daffodils Stamps Additional Postage 2¢ Multiple Stamp Formats $0.40 - $200.00 Saul Bellow Stamps Three Ounce $1.36. Postage Information As of July 13, 2025, the cost for a regular First Class Mail Forever Stamp is 78 cents, the surcharge cost for a non-machinable envelope remains 46 cents, and the cost for each additional ounce over one ounce is 29 cents.
Learn about the true cost of USPS Additional Ounce stamps. Understand pricing and postage optimization for domestic and international shipments. Letters metered at 1 ounce will also hike in cost, from 69 cents to 74 cents, while the additional.
If you want to know how much a postage stamp costs right now, here are the USPS current postage rates and stamp prices.
