How Many Stamps Do I Need To Send A Letter?

In the era of texting and emailing, a handwritten letter might seem outdated to you but is still a thoughtful and classic way to express how you feel for someone. Also, let us not deny the fact that it takes little effort and time to mail a letter than just pressing that small “send” button from your smart phone or a computer. However, the one common question that arises before mailing is this – how many stamps do I need to send a letter? If you are someone, who is stuck with the same and want to know more about it, you are at the right spot. We will be giving you complete information on what you have been searching for. Read on.

How Many Stamps Do I Need To Send A Letter?
So, the answer to the question – how many stamps do I need to send a letter depends on 3 things:

  • Size
  • Weight
  • Destination


Here Is Your Answer
You just need 1 stamp (that is the “forever stamp”) for sending a letter within United States. However, if you are mailing out of the country or overseas, the stamp should have “stamps price” on them. Moreover, the number of stamps you need to stick varies on its weight. For cost calculation and other information, check the government website

Let us assume your letter to be of 1 ounce. In this case, domestically it is one 49-cent stamp and an extra 21-cent stamp for every additional ounce (for regular letter and if it is within US). Everywhere else, it is 90 cents. On the other hand, for a large letter, it would cost you 80 cents for the first ounce and 21 cents for every addition ounce. Finally, for a postcard, it costs 34 cents.


Note: All the above-mentioned postage rates are based on the USPS announcement as of 26 April 2015.

How Many Stamps Do I Need To Send A Letter

How Many Stamps Do I Need To Send A Letter Out Of State?

As said earlier, the stamps required to send a letter out of state depends on weight, size of the envelope and the region you are mailing to. However, a standard size envelope weighing 1 ounce or less requires a 49-cent stamp. On the other hand, if your letter weighs over 1 ounce, you need to stick an extra 21-cent stamp for every additional ounce. Say for instance, you have a letter that weighs about 3 ounces, then you should stick: one 49-cent stamp + two 21-cent stamps.

How Many Stamps (Forever) You Need To Send A 1-Ounce Letter From US To UK?

USPS (United States Postal Service) lets you send regular letters from US to any International destination without a customs form. You can check their official page here: If your selected envelope doesn’t exceed a length of 11-1/2 inches, thickness of 1/4 inch and height of 6-1/8 inches, USPS’s First Class Mail International service sends a 1 ounce letter for an amount of $1.15. However, the cost rises as the weight increases. To send a 1-ounce letter from US to UK, you need three $0.49 USPS Forever stamps. Below we have listed detailed information on the overall charges:

  • For sending 1 ounce letter from US to UK, the postage costs $1.15
  • For sending 2 ounces letter from US to UK, the postage costs $2.13
  • For sending 3 ounces letter from US to UK, the postage costs $3.12
  • For sending 4 ounces letter from US to UK, the postage costs $5.10
  • For sending 5 ounces letter from US to UK, the postage costs $6.04
  • For sending 6 ounces letter from US to UK, the postage costs $6.97
  • For sending 7 ounces letter from US to UK, the postage costs $7.91
  • For sending 8 ounces letter from US to UK, the postage costs $8.85

How To Know How Many Stamps Do I Need For Sending A Letter?

As said earlier, it depends on how much your envelope weighs, the kind of service you use and the size of your package. For complete details, check this link: If you are not sure, as to how much your envelope weighs or you don’t have a measuring scale, it is better to take the parcel to a post office. They will be happy to weigh it and suggest you the ideal option as well.

Also, we would like to inform you that USPS official website offers a calculator to determine the overall cost to send a letter. You can access the USPS “Postage Price Calculator” by just clicking the tab named “Calculate a Price” (located at its home page). The calculator then asks for your destination, which might be domestic / international. Further, it asks for your letter’s shape. Once you enter this, the calculator requests the weight of your letter (either in pounds or in ounces).

As soon as you enter the weight information, the calculator further asks you to choose from one of its four properties, which are:

  • Letter
  • A square envelope
  • An envelope containing rigid object
  • Odd shaped envelope

You need to select the best that characterizes your envelope. Finally, the tool asks if the postage has to be paid using a postal meter or by attaching a stamp. The charge for mailing a metered letter is somewhat less when compared to the price of a stamped one.

Hope you have the answer for what you have been searching for. This is not the end of this article. Below are few other things to make a note of.

How To Use Your Old Stamps?

If you are someone, who is used to sending and receiving letters rather than texting or emailing, chances are that you will have some old stamps. Now, think twice before you throw them in the bin because you can still put them to use. We will tell you how.


  • First, determine the stamp’s value.
  • If you are going to send a letter to someone, just weigh the envelope and determine how much postage it requires. For a 1st class mail, the 1st ounce costs 49 cents and 21 cents for every additional ounce.
  • Next, add the value of old stamps. Say for instance, if you have one 7-cent Franklin stamp and five 4-cent Lincoln stamps, then you have stamps worth 27 cents.
  • Now, subtract the total number of stamps from the total sum you require to mail the envelope. Say for example, your letter weighs 2 ounces, then you require 61 cents = 17 + 44. Now, 61 – 27 = 34, which means you will need 34 cents for sending the letter. It is completely your choice to use the combination for attaching stamps. It can be two 17-cent stamps. In the end, the total has to be 34.
  • Use a glue to fix the old stamps.

Note: Stamps price increase in every few years. Hence, for old stamps, always check the website to ensure that they can be still used.

How To Send A Letter?

If you are not aware of the procedure to send a letter, then here is a step-by-step guide to help you:

1. Choose Your Envelope

It is very important to select the right envelope for your letter. Say for example, if you prefer a very light envelope, then it might tear up when it is in transit. Hence, consider the below given factors to decide the envelope:

  • Paper’s Weight: The envelope’s weight must match with the paper’s weight or the contents you are going to send. If your envelope is written on a heavy card-stock or you have included something like photos, go for a strong envelope.
  • Paper’s Size: The envelope’s size should match with your paper’s size too. Standard size paper (8 ½ inch by 11 inch) can be easily folded in thirds. Hence, you can go with business-sized covers whereas a letter written on note-cards might be sent using smaller envelopes.
  • Letter’s Intent: To mail a cover letter, prefer a professional business-sized envelope. On the other hand, if you have a personal note to be sent, go for a colorful and decorative envelope.
  • Letter’s Destination: Choose a strong envelope if you are going to mail the letter overseas. Since it is a long way, chances of damage is higher.

 2. Enclose Your Letter And Seal It

Once you have chosen the envelope, place your letter inside the envelope and stick every edge using a glue. If you want, use a sticky tape to seal the edges for extra protection.

3. Write The Receiver’s Address

After sealing the envelope, write the recipient’s name and address on the front side. The address should include house or apartment number, name of the street, city, state and postal code. Make sure to be very clear when you write the address so that it reaches the given destination. Don’t forget to write the country name if you are sending overseas.

4. Write The Return Address

At the envelope’s top left corner, write your (sender’s) name and address. You can even write at the back. This is up to you. This is to make sure that the letter returns to you if it does not reaches the recipient.

5. Stick The Stamps

If you are sending the letter within the same country you live, stick a first-class stamp at the envelope’s top right corner. You can buy the stamps from a post office near you or online at

6. Buy Extra If Required

Over-sized or heavy letters, which are being sent overseas, need additional postage. To determine how much postage you require, first weigh your letter.

7. Place Your Letter Inside The Blue Mailbox

If you live in US, you will notice USPS mailboxes in blue color at suburbs and sidewalks. You can use any of them to post your letter. Soon, a postal staff will gather your latter and begin the delivery process. Don’t post your letter in the brown mailbox. It is only for commercial or residential use.

Category Misc