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Envelope Size Charts:
Your Complete EnvyPak GuideTo Envelope Sizes


 

We are asked more questions about envelop sizes than anything else. So here we will provide the most complete guide on envelope size that you will find anywhere. You will find answers to the most common questions that we receive here including:

  • • What is the standard envelope size for the US?
  • • What is a business-size envelope?
  • • What is the standard envelope size?
  • • What is a 10 envelope
  • • What size is a 9 envelope?
  • • What are invitation envelope sizes?
  • • What is the A4 envelope size?

We have included a frequently asked questions section at the end to cover all of the questions you may have. When you are choosing an envelope for your personal or business requirements then you need to be aware that there are a number of different envelope types so we will start there first.

The Different Types of Envelopes

The truth is that there are a number of different types of envelopes. There are window envelopes commonly used for bill paying as they have a window where you can display the return address. This saves on having to write out the address.

If you want to send a letter overseas then you will need an airmail envelope. Need to send a DVD or CD somewhere? Well, you can get a special disc envelope for that. The most popular type of envelope used in the United States is the banker envelope. With their triangular flaps, these are popular with business users and personal users alike.

The pocket envelope is smaller than a lot of the other envelope types. You can find many types of pocket envelopes and people tend to use these for coupons, photographs, mail receipts, etc.

Announcement envelopes are popular for sending out invitations. Baronial envelopes are for announcements and a lot of people use these. People use announcement envelopes to send greetings cards, small booklets, and brochures as well as invitations.

Another envelope type is the square envelope. These envelopes are completely square and often people use these for fancy invitations. Then there are wallet envelopes that businesses use in mailing machines due to their straight flaps allowing automatic insertion of materials. Many direct mail pieces arrive in wallet envelopes.

People use booklet envelopes to send brochures, booklets, photographs, statements, and so on. There are different sizes of booklet envelopes and a lot of businesses use a large size so that they can send documents without the need to fold them.

Another popular envelope is the catalog envelope. These are popular with businesses that send out catalogs, reports, insurance policies, magazines, etc. Job hunters use catalog envelopes to send their resumes to companies. Users tend to go with a larger size catalog envelope so that they do not have to fold the materials inside it.

These are the most common types of envelopes used by businesses and private individuals. There are other envelope types available for special applications such as lined envelopes and mini envelopes.

Letter Size Envelopes and Standard Envelope Sizes

Is there a standard letter envelopes size? No there isn’t. Letter paper used in the United States is 8.5 inches by 11 inches. You can use different-sized envelopes to send a letter-sized document.

A lot of businesses and private individuals use the number 10 envelope size to send folded letter paper. Some businesses do not want to fold a letter-size document so they will use catalog envelopes.

There is no doubt that the #10 envelope size is the most popular used for letter-sized paper. It is one of those envelope sizes considered to be a standard-sized envelope. While there is really no standard size envelope or standard envelopes 10 size is probably the closest to a standard envelope size.

What about the standard business envelope size? Well, again you are looking at size 10 envelopes as standard-sized envelopes for business because they are just so popular. So to answer the question “what size is a standard envelope?’ there isn’t really a regular envelope size or standard envelope dimensions.

If you base standard envelope sizes on popularity then the #10 envelope size and even the #9 envelope size come into this category. But they are certainly not the only game in town and more and more people are now using the A4 envelope size as well as the A5 sized envelope.

Envelope Size Chart

Envelope Size Charts

Now we will bring you envelope size charts for the most popular types of envelopes. In each envelope size chart, you will see the envelope type (e.g. #9, #10, A5, A4) if this applies and precise sizes of the envelope. You can find the standard envelope dimensions in all of our envelope charts.

 

Business and Personal Correspondence Envelopes Chart

Here you will find the most popular envelope types and sizes used by businesses and private individuals to send their correspondence.

Paper Envelope Type

 Paper Envelope Size

EnvyPak Clear Envelope

6 ¼

3.5 inches by 6 inches

16611- 4.00(h) x 6.00(w)

6 ¾

3.625 inches by 6.5 inches

17206 – 4.75(h) x 6.50(w)

8 5/8

3.625 inches by 8.625 inches

15550 – 4.50(h) x 8.63(w)

7

3.75 inches by 6.75 inches

NA

7 ¾ (Monarch)

3.875 inches by 7.5 inches

16102 – 4.00(h) x 7.50(w)

9

3.875 inches by 8.875 inches

14892 – 5.38(h) x 8.75(w)

9 (for policies)

4 inches by 9 inches

15239 – 4.25(h) x 9.00(w)

10

4.125 inches by 9.5 inches

12777 – 4.19(h) x 9.50(w)     STOCK

DL

4.313 inches by 8.625 inches

15550 – 4.50(h) x 8.63(w)

11

4.5 inches by 10.375 inches

16583 – 4.50(h) x 10.50(w)

12

4.75 inches by 11 inches

16970 – 4.81(h) x 11.25(w)

14

5 inches by 11.5 inches

15789 – 5.25(h) x 11.50(w)

16

6 inches by 12 inches

15275 – 6.00(h) x 12.00(w)

The #10 envelope size is considered to be the standard business envelope size and the #9 envelope size is the standard reply envelope size.

Catalog Envelopes Chart

If you have a requirement to mail heavyweight materials then the catalog envelope has the durability for this task.

Paper Envelope Type

 Paper Envelope Size

EnvyPak Clear Envelope

1

6 inches by 9 inches

12776 – 6.00(h) x 9.00(w)   STOCK

1 ¾

6.5 inches by 9.5 inches

16295  – 6.50(h) x 9.50(w) 

3

7 inches by 10 inches

13829 – 7.00(h) x 10.00(w)

6

7.5 inches by 10.5 inches

17547 – 7.50(h) x 10.63(w)

8

8.25 inches by 11.25 inches

16332 – 8.25(h) x 11.38(w)

9 ¾

8.75 inches by 11.25 inches

15375 – 9.00(h) x 11.25(w)

10 ½

9 inches by 12 inches

12855 – 9.00(h) x 12.00(w)   STOCK

12 ½

9.5 inches by 12.5 inches

13739 – 12.50(h) x 9.50(w)

13 ½

10 inches by 13 inches

14672 – 13.00(h) x 10.00(w)

14 ½

11.5 inches by 14.5 inches

16419 – 11.63(h) x 14.25(w)

15

10 inches by 15 inches

16757 – 10.50(h) x 15.00(w)

15 ½

12 inches by 15.5 inches

16790 – 11.00(h) x 15.63(w)

The standard sizes here are the 10 ½ and 13 ½ catalog envelopes.

Booklet Envelopes Chart

A lot of businesses use booklet envelopes to send brochures, sales materials, and annual reports, and so on.

Paper Envelope Type

Paper Envelope Size

EnvyPak Clear Envelope

3

4.75 inches by 6.5 inches

17206 – 4.75(h) x 6.50(w)

4 ½

5.5 inches by 7.5 inches

13204 – 5.50(h) x 7.50(w)   STOCK

5

5.5 inches by 8.125 inches

15447 – 5.50(h) x 8.25(w)

6

5.75 inches by 8.875 inches

16559  – 6.50(h) x 8.75(w)

6 ½

6 inches by 9 inches

12776 – 6.00(h) x 9.00(w)   STOCK

6 5/8

6 inches by 9.5 inches

13443 – 6.00(h) x 9.50(w)   STOCK

6 ¾

6.5 inches by 9.5 inches

16295  – 6.50(h) x 9.50(w) 

7 ¼

7 inches by 10 inches

13829 – 10.00(h) x 7.00(w) 

7 ½

7.5 inches by 10.5 inches

17547 – 7.50(h) x 10.63(w)

9

9.75 inches by 11.5 inches

15406 – 9.50(h) x 11.50(w)

9 ½

9 inches by 12 inches

12855 – 9.00(h) x 12.00(w)   STOCK

10

9.5 inches by 12.625 inches

17296 – 9.75(h) x 12.50(w)

13

10 inches by 13 inches

14672- 13.00(h) x 10.00(w)

The standard sizes for booklet envelopes are 9 ½ and 13.

 

Announcement Envelopes Chart

Announcement envelopes are ideal for sending greeting cards, promotional materials, photographs, and small booklets. Sometimes you will see those called “A-style” envelopes.

Paper Envelope Type

 Paper Envelope Size

EnvyPak Clear Envelope

A2

4.375 inches by 5.75 inches

14816  – 5.13(h) x 4.50(w)

A6

4.75 inches by 6.5 inches

17206  – 4.75(h) x 6.50(w)

A7

5.25 inches by 7.25 inches

13204 – 5.50(h) x 7.50(w)   STOCK

A8

5.5 inches by 8.125 inches

15447  – 5.50(h) x 8.25(w)

A9

5.75 inches by 8.875 inches

16559  – 6.25(h) x 8.75(w)

A10

6 inches by 9.5 inches

13443 – 6.00(h) x 9.50(w)   STOCK

Baronial Envelopes Chart

Baronial envelopes are very popular with people that want to send out invitations and formal announcements. The flaps on these envelopes are deep pointed.

Paper Envelope Type

 Paper Envelope Size

EnvyPak Clear Envelope

4 BAR

3.625 inches by 5.125 inches

13995 – 3.75(h) x 5.00(w)

5 ½ BAR

4.375 inches by 5.75 inches

14816 – 5.13(h) x 4.50(w)

6 BAR / Walton Outside

4.75 inches by 6.5 inches

17206 – 4.75(h) x 6.50(w)

Lee

5.25 inches by 7.25 inches

13204 – 5.50(h) x 7.50(w)   STOCK

Professional

2.125 inches by 3.625 inches

15578  – 2.19(h) x 3.75(w)

Gladstone

3.563 inches by 5.562 inches

13995  – 3.75(h) x 5.00(w)

16

2.375 inches by 3.375 inches

15522  – 2.88(h) x 3.75(w)

17

2.6875 inches by 3.6875 inches

15522  – 2.88(h) x 3.75(w)

Monona Inside

5.25 inches by 7.5 inches

16325  – 5.25(h) x 7.50(w)

Monona Outside

5.5 inches by 7.75 inches

16998  – 5.38(h) x 7.81(w)

Envelope Size Chart for A Series

The A-series envelopes are very popular now and used by a lot of businesses and private individuals. They conform to the globally recognized standard ISO 216.

Paper Envelope Type

 Paper Envelope Size

EnvyPak Clear Envelope

A0

33.1 inches by 46.8 inches

NA

A1

23.4 inches by 33.1 inches

NA

A2

16.5 inches by 23.4 inches

NA

A3

11.7 inches by 16 ½ inches

13842 – 12.13(h) x 16.88(w)

A4

8.3 inches by 11.7 inches

16957 – 8.50(h) x 11.50(w)

A5

5.8 inches by 8.3 inches

15447 – 5.50(h) x 8.25(w)

A6

4.1 inches by 5.8 inches

16611- 4.00(h) x 6.00(w)

A7

2.9 inches by 4.1 inches

15899 – 2.75(h) x 4.00(w)

A8

2 inches by 2.9 inches

16584 – 3.88(h) x 3.13(w)

A9

1.5 inches by 2 inches

NA

A10

1 inch by 1.5 inches

NA

The most popular A-series type envelopes are the A5 and A4. With A4-sized paper now used very often, you can fold an A4 sheet in half and it will fit perfectly into an A5 envelope. If you do not want to fold the paper then use an A4 envelope.

Square Envelopes Chart

In some situations, a square envelope is best for mailing your correspondence. Some invitations are square so you just need to choose the right type and size.

Paper Envelope Type

Paper Envelope Size

EnvyPak Clear Envelope

5 Square

5 inches by 5 inches

15559 – 5.00(h) x 5.00(w)

5 ½ Square

5.5 inches by 5.5 inches

10598 – 5.50(h) x 5.50(w)

6 Square

6 inches by 6 inches

13249 – 6.188(h) x 6.00(w)

6 ½ Square

6.5 inches by 6.5 inches

14020 – 6.00(h) x 6.25(w)

7 Square

7 inches by 7 inches

13607 – 7.00(h) x 7.00(w)   STOCK

7 ½ Square

7.5 inches by 7.5 inches

17179  – 7.50(h) x 7.50(w) 

8 Square

8 inches by 8 inches

15688  – 8.00(h) x 8.00(w) 

8 ½ Square

8.5 inches by 8.5 inches

13565  – 8.44(h) x 8.44(w) 

9 Square

9 inches by 9 inches

10306  – 9.00(h) x 9.00(w) 

9 ½ Square

9.5 inches by 9.5 inches

17065  – 9.50(h) x 9.50(w) 

EnvyPak Clear Envelopes are available with or without print, with or without tape, folded flaps for automation needs, and biodegradable polypropylene by request. Minimums apply.

Please contact our Sales Representative to discuss all your projects. CALL 877.835.3052 or request samples.

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