Postage to Canada

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By Alex Cook

Updated January 2021
Last postage increase January 24, 2021
Covid-19 / Coronavirus status : Delivering normally
Photo of an old envelope reading 'Postage for $country_name'

The easiest way to send letters from the USA to Canada is with Global Forever Stamps for $1.30 each. You can also use regular, domestic forever stamps as long as they add up to $1.30. Unlike all other international destinations, Global Stamps to Canada are Buy One Get One on the first 2 ounces. BOGO! For more than 2 ounces you'll want to add the required, extra postage. Here's the first class postage you'll need to send letters to Canada, which is part of "group 1" in the USPS Price List.

Jump to: Covid-19 / Coronavirus status,   Envelope requirements,   how to weigh your envelope,   where to buy stamps,   delivery times,   accuracy notes,   where to apply stamps,   postage for more than 3.5 ounces, or   postage for large envelopes (flats)

How many stamps do I need for a letter to Canada?

The number of stamps you'll need depends on the weight. First weigh your envelope using a kitchen scale then add the correct number of stamps, rounding up to the nearest ounce.

Weight Postage
1 ounce ($1.30) One Global Forever stamp ($1.30)
USA Global Forever Stamp, round green succulent design

Or you can overpay by $0.44 using three Domestic Forever stamps ($1.74)
USA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag design
2 ounces ($1.30) One Global Forever stamp ($1.30)
USA Global Forever Stamp, round green succulent design

Or you can overpay by $0.44 using three Domestic Forever stamps ($1.74)
USA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag design
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3 ounces ($1.83) One Global Forever stamp, one Global Forever stamp, one 10¢ stamp, one 5¢ stamp, one 2¢ stamp, and one 1¢ stamp ($1.83)
USA Global Forever Stamp, round green succulent designUSA Global Forever Stamp, round green succulent designUSA 10 cent stamp, two red pears reading 10¢ in the upper left and USA in the bottom right, in red fontUSA five cent stamps, two bundles of purple grapes with green leaves, reading 5¢ in the upper left and USA in the bottom right, both in purple fontUSA two cent stamps, a meyer lemon next to two lemon halfs cut open, reading USA in the lower left and 2¢ in the upper right in yellow fontUSA one cent stamps featuring two yellow apples with green leaves and a small stick, reading 1¢ in the upper left and USA in the lower right

Or you can overpay by $0.77 using two Global Forever stamps ($2.60)
USA Global Forever Stamp, round green succulent designUSA Global Forever Stamp, round green succulent design

Or you can overpay by $0.49 using four Domestic Forever stamps ($2.32)
USA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag design
3.5 ounces ($2.36) One Global Forever stamp, one Domestic Forever stamp, one Domestic Forever stamp, one 10¢ stamp, one 2¢ stamp, and one 1¢ stamp ($2.36)
USA Global Forever Stamp, round green succulent designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA 10 cent stamp, two red pears reading 10¢ in the upper left and USA in the bottom right, in red fontUSA two cent stamps, a meyer lemon next to two lemon halfs cut open, reading USA in the lower left and 2¢ in the upper right in yellow fontUSA one cent stamps featuring two yellow apples with green leaves and a small stick, reading 1¢ in the upper left and USA in the lower right

Or you can overpay by $0.24 using two Global Forever stamps ($2.60)
USA Global Forever Stamp, round green succulent designUSA Global Forever Stamp, round green succulent design

Or you can overpay by $0.54 using five Domestic Forever stamps ($2.90)
USA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag design
More than 3.5 ounces See rates for flats

Covid-19 / Coronavirus status: Delivering normally

At this time, mail to Canada is opearting normally. You can track updates on the USPS website. We monitor for updates daily and will update this page accordingly.

How many stamps for a postcard?

If you're sending a postcard to Canada you'll need one Global Forever Stamp for $1.30. Make sure your postcard is:

  • Rectangular (it can't be a square or round)
  • At least 3-1/2 inches high x 5 inches long x 0.007 inch thick
  • No more than 4-1/4 inches high x 6 inches long x 0.016 inches thick

Envelope requirements

Your envelope must be a minimum 5” x 3.5”, maximum 11.5” x 6+⅛”, and no thicker than 1/4".

Make sure your envelope is of uniform thickness, rectangular, and bendable. Otherwise, you may have a "non-machinable" envelope and add $0.15 of extra postage. Check out the full list of non-machinable characteristics.

Square envelopes must be a minimum of 5". Square envelopes are considered non-machinable so add the extra $0.21.

How to weigh your envelope

Use a kitchen food scale to measure your envelope’s weight. If you don’t own one, Amazon makes a good entry level scale for $10.99 and there’s a higher end scale from My Weigh for $38 on Amazon Prime. Walmart also offers several cheap kitchen scales like this Milleroo scale for $8.25

If you're sending printed photos, check out our guide on how many stamps are needed to mail 4x6 photos — no scale needed!

Where to buy stamps

You can buy stamps at your local USPS post office and online at USPS.com — shipping is just over $1 for a sheet of stamps. Walmart and Amazon also carry stamps, as well as many local banks. Stamps from Amazon aren't a very good deal at $16.18 for a sheet of 20 which you can get for $5.18 less direct from the USPS.

Accuracy notes

We check postage rate changes weekly.
New prices effective August 29, 2021
Announced May 2021, the latest increase will take effect in August.
  • The cost of a forever stamp increased from $0.55 to $0.58
  • Postcards incraesed from $0.36 to $0.40
  • Flats increased from $1.00 to $1.16
  • International forever stamps increased from to $1.30 from $1.20
  • All international additional ounce rates for both standard letters and flats have increased
Previous price increases
On January 24, 2021 additional ounces increased from $0.15 to $0.20. Metered mail and postcards increased by 1 cent. There was no change to 1 oz letters and flats. Postcard stamps increased to $0.36.

On January 26, 2020 fates for domestic letters under 3.5 ounces remained the same. Rates for flats (large envelopes) and all global first-class mail increased. Global forever stamps went from $1.15 to $1.20. Rates on additional ounces for flats (large envelopes) went up by $0.05 per additional ounce for domestic flats and changed for international flats as well. Additional ounces for all international first-class mail changed with the base increase from $1.15 to $1.20.

Where to apply stamps on a letter

Stamps go in the upper-right corner of a letter, ideally all in one row. However, the post office will accept your letter even if your stamps go to a second or third line.

Delivery times for letters to Canada

Unlike domestic letters which are delivered in 1-3 days, delivery time to Canada is 7-21 days.

Sending more than 3.5 ounces to Canada or sending large envelopes to Canada

Below are the rates for sending a large envelope ("flat") to Canada. The maximum weight for a standard letter is 3.5 ounces, so use a flat if you're sending more than 3.5 ounces. The base rate for Canada is $2.60. Extra ounces cost more and the maximum weight is 15.994 ounces. The rates below are sourced directly from the USPS.

Flats must be a minimum of 6-1/8" by 11-1/2", maximum 12" by 15". Unlike standard letters, the maximum thickness is 3/4".

Manilla envelope 8.5x11 showing front and back with sticky flap

A standard 8.5” x 11” manilla envelope is the most common flat size. You can pick up a 100 pack on Amazon for $15.99 ($0.16 each) or 20 pack for $4.83 ($0.24 each). Local office supply stores also have these. Staples offers a 100-pack for $40.79 ($0.41 each).

Note you can't use a bubble envelope as bubble envelopes are typically more than 1/4" thick. Bubble envelopes are usually considered a "package / thick envelope" by the USPS. You can purchase a label on PayPal and print at home or visit your local post office.

How many stamps do I need for a large envelope (flats) to Canada?

The number of stamps you'll need depends on the weight. First weigh your envelope using a kitchen scale then add the correct number of stamps, rounding up to the nearest ounce.

Weight Postage
1 ounce ($2.60) Two Global Forever stamps ($2.60)
USA Global Forever Stamp, round green succulent designUSA Global Forever Stamp, round green succulent design

Or you can overpay by $0.30 using five Domestic Forever stamps ($2.90)
USA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag designUSA Forever Stamp, USA flag design