Postage Verification | USPS
www.usps.com › business › verify-postageWhen calculating the postage price for your package, USPS rounds up the weight (to the next pound for most heavier packages or to the next available ounce-rate for some lightweight packages). This applies to all mail classes—domestic and international. For example, if your package weighs 3 lbs 4 oz, it would be charged at the 4 lb-rate.
How to Send a Letter or Postcard | USPS
www.usps.com › ship › lettersPostage for letters mostly depends on weight and size/shape. You can weigh your letter with a kitchen scale, postal scale , at a self-service kiosk, or at the Post Office ™ counter. TIP: As a rule of thumb, you can send 1 oz (4 sheets of printer paper and a business-sized envelope) for 1 First-Class Mail ® Forever ® stamp (currently $0.66).
Postage Rates & Prices | USPS
www.usps.com › business › pricesLetter Stamps Standard-sized, rectangular envelopes From $0.66 Square, Oversized, or Unusual Envelopes From $1.06 Postcard Stamps Standard-sized, rectangular postcards From $0.51 Global Forever® (International) Standard-sized, rectangular envelopes From $1.50 Prices Expand All Domestic Prices International Prices Downloadable Files