First-Class Mail International
Affordable Mailing with Global Forever Stamps
First-Class Mail International® (FCMI) service is the most affordable way to send letters and lightweight packages to more than 190 countries, including Canada and Great Britain.
Send 1 oz letters or postcards around the world with one Global Forever® stamp, which currently costs $1.20. The stamp will never expire, even if the postage price goes up.
ALERT: USPS can no longer accept or deliver international mail to several countries due to COVID-19 service impacts. See all countries with temporary service and guaranteed-delivery suspensions. Read More
Features & Pricing
- Our most affordable international service
- Can be used for postcards, letters, and large envelopes
- Eligible for flats up to 15.994 oz
- Global Forever stamp available
- Delivery varies by destination
- Eligible for delivery confirmation services such as Registered Mail®
- Price varies based on weight and destination
Stamp Prices for Letters & Postcards
Stamps for standard-sized letters and standard-sized postcards up to 1 oz start at $1.20 for all countries. However, prices for envelopes heavier than 1 oz, oversized, or unusually shaped is based on the destination country’s price group.
Weight, Size, & Shape Requirements
- Send mailpieces up to 15.994 oz.
- All postcards and envelopes (or flats) must be rectangular, otherwise an additional charge may apply. Additional size restrictions apply depending on the type of mailpiece you're sending.
Additional Charges for Larger Mailpieces & Envelopes
If a mailpiece exceeds the maximum length, height, or thickness of one rate, it will be charged at the next higher rate. Large envelopes that exceed maximum dimensions will be charged package rates. Calculate expected shipping costs for international shipments using the International Price Calculator.
Customs Forms
If you just need a customs form, you can use our online tool to fill out the correct form.