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USPS international letter rates, by destination.
Postage for letters, large envelopes and postcards mailed from the US to Canada, Mexico and the rest of the world, from the Notice 123 tables.
A 1 oz international letter is $1.75 to any country. At 2 oz it is $2.35 to Canada, $2.60 to Mexico and $3.50 elsewhere. A large envelope starts at $3.30.
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USPS international letter and large envelope rates
First-Class Mail International retail prices from Notice 123 (page 43). Notice 123 prints four price groups for letters and large envelopes: Canada (group 1), Mexico (group 2), groups 3 to 5 and groups 6 to 9. Groups 3 to 5 and 6 to 9 carry identical prices in both tables, so this tool shows one “all other countries” column.
| Weight | Canada | Mexico | All other countries |
|---|---|---|---|
| Up to 1 oz | $1.75 | $1.75 | $1.75 |
| Up to 2 oz | $2.35 | $2.60 | $3.50 |
| Up to 3 oz | $2.95 | $3.50 | $5.25 |
| Up to 3.5 oz | $3.50 | $4.15 | $5.75 |
| Weight | Canada | Mexico | All other countries |
|---|---|---|---|
| Up to 1 oz | $3.30 | $3.30 | $3.30 |
| Up to 2 oz | $3.75 | $4.35 | $4.65 |
| Up to 3 oz | $4.25 | $5.45 | $6.05 |
| Up to 4 oz | $4.65 | $6.45 | $7.35 |
| Up to 5 oz | $5.15 | $7.55 | $8.75 |
| Up to 6 oz | $5.65 | $8.65 | $10.15 |
| Up to 7 oz | $6.15 | $9.75 | $11.55 |
| Up to 8 oz | $6.65 | $10.85 | $12.95 |
| Up to 12 oz | $7.60 | $13.00 | $15.75 |
| Up to 15.994 oz | $8.55 | $15.15 | $18.55 |
The nonmachinable letter surcharge is $0.49. International postcards are $1.75 to every destination. Pieces that are rigid, nonrectangular or not uniformly thick pay package prices. Packages heavier than a large envelope go by First-Class Package International Service or Priority Mail International, which Notice 123 prices by country price group; look up your country’s group in the notice (pages 55 to 60) or use the USPS International Price Calculator.
Mailing from Canada instead? See the Canada Post postage rate calculator. International mail may also need a customs form, which this tool does not cover.
Frequently asked questions
How much is a stamp to mail a letter internationally?
A 1 oz letter is $1.75 to Canada, Mexico and every other country at retail. Heavier letters cost more: at 2 oz it is $2.35 to Canada, $2.60 to Mexico and $3.50 elsewhere (Notice 123 effective October 4, 2026).
How much is postage to Canada?
A letter is $1.75 up to 1 oz, $2.35 up to 2 oz, $2.95 up to 3 oz and $3.50 up to 3.5 oz. A large envelope starts at $3.30 for 1 oz.
Is there a price difference between countries?
Between Canada, Mexico and all other countries yes, as in the tables above. Among countries in groups 3 to 9 the letter and large envelope prices are the same.
What if my envelope weighs more than 15.994 oz?
Notice 123 prices First-Class Mail International large envelopes only up to 15.994 oz. Heavier items need a package service, priced by country on the USPS website.
When do USPS prices change?
USPS usually updates its prices in January and July and can also change them at other times. This page is built from Notice 123 effective October 4, 2026. Check the effective date at the top of the official Notice 123; if a newer one is in force, use its figures.
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Prices change: check the date
These figures are USPS list prices from Notice 123 (Price List), effective October 4, 2026, read on 18 October 2026. USPS usually updates prices in January and July and can change them at other times, so if today is after a newer Notice 123 took effect, the official notice wins. Extra services (insurance, tracking add-ons, signature, pickup) and taxes are not included.