USPS rates are determined by a combination of weight, mail class, and shape. Weigh your mail piece and choose your mail class, destination, and special services, and we’ll automatically calculate the required postage for you.
Learn everything you need to know about USPS First-Class® postage, USPS postage rates by weight and size, USPS postage rates for letters and envelopes, and USPS international postage rates — all in one place.
| USPS Mail Class | USPS Postage Rates |
|---|---|
| First-Class mail letter (1 oz.) | $0.78 |
| Postcard | $0.61 |
| First-Class mail flat (1 oz.) | $1.63 |
| First-Class mail flat – each additional ounce | $0.29 |
In addition to postage for delivery, USPS also offers a variety of special services such as Certified Mail®, USPS Tracking®, and insurance. Here is a summary of these special services:
| USPS Special Service | USPS Postage Rates |
|---|---|
| Certificate of mailing | $2.40 |
| Certified Mail® | $5.30 |
| Electronic USPS tracking: Priority Mail®, Ground Advantage™, service and media mail | Included |
| Registered mailing | $19.70 and up |
| Restricted delivery | $13.35 |
*Retail/post office rate: prices paid when going to post office to purchase postage. Unless indicated, rates listed are discounted rates for online purchase available through Stamps.com.
Our software includes everything you need to calculate current postage rates with ease so you can avoid the postage math. And if postage rates change, we’ll update the rates automatically with no fees to updated rates.
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