
To send a letter to Canada, you'll need to know how many Forever Stamps to use. The cost of sending a letter to Canada is $1.20, which is the standard rate for a 1 oz letter.
The Forever Stamp is a special type of stamp that can be used for future mailings, regardless of the current postage rate. This means you can buy Forever Stamps at the current rate and use them to send mail at the future rate.
If you're sending a letter to Canada, you'll need to use a Forever Stamp that is at least $1.20 in value. This ensures that you have enough postage to cover the cost of sending the letter.
Mailing to Canada
Mailing to Canada requires some knowledge of the right stamps to use. You can send a letter to Canada using a Global Forever Stamp, which is specifically designed for international mailing.
One Global Forever Stamp is worth $1.40 and can send letters weighing up to 2 ounces. To mail a 1-ounce letter, a single Global Forever Stamp is enough, but for a 2-ounce letter, one Global Forever Stamp is sufficient as well.

The rates for mailing flats to Canada are higher, with a minimum of $2.60 for a 1-ounce flat. You can use two Global Forever Stamps to mail a letter or card weighing more than 3.5 ounces.
Here's a table showing the rates for mailing flats to Canada:
Using domestic Forever Stamps to mail to Canada is possible, but it's not recommended as you'll end up overpaying. For example, using three domestic Forever Stamps would cost $1.80, which is $0.40 more than the cost of a Global Forever Stamp.
Send Letter to Canada
If you're planning to mail a letter to Canada, you'll need to know the right postage. A single Global Forever stamp is worth $1.40 and can send a letter or postcard weighing up to 1 ounce via First-Class Mail International.
You can also use domestic Forever stamps, but you'd need to attach at least three of them to cover the total value of $1.30 for postage to Canada. However, this will lead to overpaying by $0.44.

To mail a flat-sized item weighing more than 3.5 ounces, you'll need at least two Global Forever stamps. The rates for sending flat-sized items to Canada via First-Class Mail International vary depending on the weight, ranging from $2.75 for 1 ounce to $7.05 for 15.994 ounces.
Here are some examples of stamp combinations for mailing a letter to Canada:
Remember, using Global Forever stamps is the most cost-effective option when mailing to Canada, as they provide enough postage for small letters and greeting cards weighing up to 2 ounces.
Canada Mailing Supplies
If you're planning to mail a flat to Canada, you'll need to make sure it meets the size and weight requirements. The item must be a minimum of 6 ⅛ inches high x 11 ½ inches long and a maximum of 12 inches high x 15 inches long.
The maximum thickness of a flat is ¾ of an inch, and it must weigh between 1 ounce and 15.994 ounces. This is a good time to check your supplies and make sure you have the right envelopes for your needs.

Pricing for 1-ounce flats headed to Canada starts at $2.60. Here's a table showing the pricing for this type of envelope:
Keep in mind that if your flat weighs more than 3.5 ounces, you'll need to look at USPS' rates for large envelopes to determine the number of stamps needed.
Postage and Costs
A single Global Forever stamp is enough to mail letters and postcards weighing up to 1 ounce to Canada via First-Class Mail International.
The $1.40 postage rate applies to First-Class Mail International items, not packages. Other classes like Priority Mail International and Priority Mail Express International cost more.
You can use domestic Forever stamps, but it's not recommended as you'll be grossly overpaying for postage. Three domestic Forever Stamps cost $1.74, and postage to Canada costs $1.30.
Here are the rates for sending flat-sized items to Canada via First-Class Mail International:
What's the Cost
The cost of postage can be a bit tricky to figure out, especially when mailing internationally. The $1.40 postage rate is only for First-Class Mail International items, not packages, so you'll need to affix more stamps to get your postage value up to the mailing cost.

For First-Class Mail International items weighing 1-3 ounces, the rate is still $1.40. However, if your item weighs 3.5 ounces or more, the rate jumps to $2.54.
You can use Global Forever stamps, which provide enough postage to send small letters and greeting cards weighing up to 2 ounces to Canada for just one stamp. However, if your item is heavier or bigger, you'll need to pay more.
One Global Forever stamp is worth $1.40, but you can also use domestic Forever stamps, as long as they add up to at least $1.30. However, using domestic Forever stamps will cost you more in the long run.
Here's a breakdown of the rates for mailing flats to Canada via First-Class Mail International:
You can use several stamp combinations to figure out how many stamps to send a letter to Canada. For example, two Global Forever stamps are worth $2.80, or you can use one Global Forever stamp and 13 10-cent stamps to get the same value.
Costs and Best Options for Mailing to Canada

To mail a letter to Canada, you'll need to know the costs and best options. A single Global Forever stamp is enough for mailing letters or postcards weighing up to 1 ounce through First-Class Mail International.
You can use domestic Forever or Cent stamps to pay postage, but it's not the most cost-effective option. Three domestic Forever Stamps would cost $1.74, but you'd only need $1.30 for postage to Canada.
The rates for mailing flats to Canada are relatively higher, with pricing starting at $2.60 for 1-ounce flats. Here's a table showing the rates for different weights:
If you're mailing a flat that weighs more than 3.5 ounces, you'll need to use the rates for large envelopes. Two Global Forever stamps are enough for mailing items weighing up to 3.5 ounces, but you may need to use more stamps for heavier items.
Forever Stamps and Postage
You can send a 1 oz letter or postcard to Canada with just one $1.65 First-Class Mail International Global Forever stamp.

The Forever stamp is a convenient option, as it's valid for international mail to any country in the world.
To calculate postage, weigh your letter with a kitchen scale, postal scale, at a self-service kiosk, or at the Post Office counter.
Postage for international letters depends on weight, size/shape, and the price group of the country you're sending to.
As a rule of thumb, you can send a 1 oz letter (4 sheets of regular printer paper and a business-sized envelope) or a postcard to Canada for 1 First-Class Mail Global Forever stamp.
The postage for a large envelope (or flat) starts at $3.15 for 1 oz, so you'll need to use multiple stamps if you're sending something bigger.
Postage Calculation and Application
To calculate postage for a letter to Canada, you'll need to consider the weight and size of the item. One Global Forever stamp provides enough postage to send small letters and greeting cards weighing up to 2 ounces to Canada.

You can also use domestic Forever Stamps, but you'll need to attach at least three of them to have enough postage, which can be costly. For example, three domestic Forever Stamps cost $1.74, but the postage to Canada only costs $1.30, so you'll be overpaying by $0.44.
Here are some postage rates for sending flat-sized items to Canada via First-Class Mail International:
Step 4: Calculate and Apply Postage
To calculate and apply postage, you'll need to consider the weight, size, and destination of your mail. The cost of postage depends on the price group of the country you're sending to, which can be found in the Country Price Groups listing.
For a 1 oz letter or postcard, you can send it to any country in the world with just one $1.65 First-Class Mail International Global Forever stamp. This stamp can also be used for other combinations of stamps that add up to $1.65.

You can weigh your letter with a kitchen scale, postal scale, or at a self-service kiosk. If your letter is heavier or bigger, you'll need to pay more postage. For example, a large envelope (or flat) starts at $3.15 for 1 oz.
Here's a rough guide to help you estimate the postage for your mail:
You can use this table to estimate the postage for your mail, but keep in mind that the actual cost may vary depending on the size and weight of your mailpiece. If you're unsure, it's always best to check with the USPS or use their online postage calculator.
One Global Forever stamp is enough to send small letters and greeting cards weighing up to 2 ounces to Canada, but you can also use domestic Forever stamps if you attach at least three of them. However, this will result in overpaying for postage.
How Many for Postcard?
When sending a postcard to Canada, you'll need one Global Forever Stamp for $1.65.

To ensure your postcard meets the requirements, make sure it's rectangular in shape.
The dimensions of your postcard are also important - it should be at least 3-1/2 inches high x 5 inches long x 0.007 inch thick.
You should also be aware of the maximum dimensions, which are no more than 4-1/4 inches high x 6 inches long x 0.016 inches thick.
Mailing Supplies
If your letter weighs more than 3.5 ounces, or is larger than a standard letter, you'll need to use a flat rate envelope.
To be considered a flat, it must conform to the following dimensions: a minimum of 6 ⅛ inches high x 11 ½ inches long, a maximum of 12 inches high x 15 inches long, and a maximum thickness of ¾ of an inch.
You can use a flat rate envelope for items weighing between 1 ounce and 15.994 ounces.
The pricing for 1-ounce flats headed to Canada starts at $2.60.
Here's a table showing pricing for this type of envelope:
Frequently Asked Questions
What is the cheapest way to send a letter to Canada?
The cheapest way to send a letter to Canada is with First-Class Mail International service, which offers affordable rates to over 180 countries. This service is ideal for sending letters and large envelopes to Canada and other international destinations.
Can I use 3 forever stamps for international mail?
For international mail, you can use 3 Forever Stamps, but a Global Forever Stamp is a more cost-effective option for letters 1 ounce or below. Using 3 Forever Stamps for international mail is acceptable, but a Global Forever Stamp is recommended for simplicity and savings.
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