

There are restrictions for mailing restricted, prohibited, and hazardous materials, including cigarettes and smokeless tobacco.

Send anything up to 4 lbs and up to $400 in value. Some countries have lower weight restrictions, click here to learn about country-specific restrictions.Click here to see weight and size restrictions. Additional size restrictions apply depending on the type of mail piece you’re sending. All postcards, envelopes, and flats must be rectangular.Calculate expected shipping costs for international shipments using the USPS International Price Calculator by clicking here.

Large envelopes that exceed maximum dimensions will be charged package rates. If a mail piece exceeds the maximum length, height, or thickness of one rate, it will be charged at the next higher rate. The price for First-Class Mail International ® varies based on destination.
