Envelope Sizes & Formats - The Ultimate List

Announcement, Invitation or Wedding Envelopes Sizes

Envelope Name & Description

These envelopes are used to send invitations, announcements, greeting cards and photographs. They are mostly used during holiday seasons and for wedding invitations, where they are customized with your personal information. There are a variety of sizes, many of which are close to 5" x 7", and many color paper stock options. Order Envelopes Online.

SIZES:
A1 = 3 5/8" X 5 1/8"
A2 = 4 3/8" X 5 3/4"
A6 = 4 3/4" X 6 1/2"
A7 = 5 1/4" X 7 1/4"
A8 = 5 1/2" X 8 1/8"
A9 = 5 3/4" X 8 3/4"
A10 = 6" X 9 1/2"
7 1/4 X 5 1/4"
4 1/4" X 6 1/4"
2 7/8" x 6 1/2"
#9 = 3 7/8" X 8 7/8"

The contour flap envelopes also have the following sizes:
5" X 5"
6" X 9"
6 1/2" X 6 1/2"

FORMATS:
Contour Flap Envelope Format

Square Flap Envelope Format

Business Envelopes 

Envelope Description:
These are your standard envelope sizes, closed-face regular envelopes that you can use in business to send letters, checks and other mailings. There are other options for side seam, recycled and kraft sizes as you will see in the non-standard sections below.

Regular Business Envelopes Sizes:

#3 = 2 1/8" x 3 5/8'
#8 5/8 = 3 5/8" x 8 5/8"
Monarch = 3 7/8" x 7 1/2"
#10 = 4â…›" x 9½"
#9 = 3â…ž" x 8â…ž"
#7¾  = 3â…ž" x 7½"
#7 = 3¾" x 6¾"
#6¾ = 3⅝" x 6½"
#6¼ = 3½" x 6"
Check = 3⅝" x 8⅝"
#11 = 4½" x 10â…œ"
#12 = 4¾" x 11"
#14 = 5" x 11 1/2"
5 3/4" x 8"

Window Business Envelopes:

#10 Window = 4â…›" x 9½"
#9 Window = 3â…ž" x 8â…ž" (Window Size: 1 1/8" x 4 1/2" - Window Position: 7/8" From Left; 1/2" From Bottom)
#7¾ Window = 3â…ž" x 7½" (Window Size: 1 1/8" x 4 1/2" - Window Position: 7/8" From Left; 1/2" From Bottom)
#7 Window = 3¾" x 6¾"
#6¾ Window = 3⅝" x 6½" (Window Size: 1 1/8" x 4 1/2" - Window Position: 7/8" From Left; 1/2" From Bottom).
Check Window = 3⅝" x 8⅝"
#11 Window = 4½" x 10â…œ"
#12 Window = 4¾" x 11"
(Note the window sizes are: 1-1/8" x 4-1/2"  and window positions are: 7/8" From Left; 1/2" From Bottom)

Remittance Envelopes

Envelope Description:
Remittance envelopes are sometimes referred to as donation envelopes. They are used for fundraising, money collection, charity donations etc. They are most popular among churches who use them for collecting tithes or collections.

Remittance Envelope Sizes:
#6 1/4 = 3 1/2" x 6"
# 3/4 = 3 5/8" x 6 1/2"
#9 = 3 7/8" x 8 7/8"
#6 1/2 = 4 1/4" x 6 1/2"
4 5/8" x 8 7/8"

Catalog Envelopes

Envelope Description:
These are the standard envelope sizes in the catalog category. Each envelope has a vertical orientation where the flap opens on the shorter end. As you see the sizes vary from the small 6 x 9 catalog envelope to the much larger 12" x 15 1/2". 

Catalog Envelope Sizes:
6" x 9"
6½" x 9½"
7½" x 10½"
9" x 12"
9½" x 12½"
10" x 13"
10" x 15"
11½" x 14½"
12" x 15"
12" x 15½"

Catalog Envelope Formats:

1. Open End Catalog - Gummed Flap
   
2. Open End Catalog - Peel & Seal™
   
3. Open End Catalog - Clasp/Gummed Flap
   
4. Clear Clasp
5. Tyvek® Catalog
   
6. Button & String Inter-Department Catalog
   

• Booklet Catalog - Gummed Flap

Booklet Envelopes

Description:

Booklet Envelope Sizes:
5 1/2" x 7 1/2"
5 1/2" x 8 1/8"
5 1/2" x 8 1/2"
5 3/4" x 8 7/8"
6" x 9"
6" x 9 1/2"
6 1/2" x 9 1/2"
7" x 10"
7 1/2" x 10 1/2"
8 3/4" x 11 1/2"
9" x 12"
9 1/2" x 12 5/8"
10" x 13"
10" x 15"

Banking & Financial Envelopes

Description:

Envelopes Sizes:
3⅜" x 7⅛" Open Side - Latex Seal on Flap
3â…›" x 7" Open End - No Latex Seal on Flap
3â…›" x 7" Open End - Latex Seal on Flap
3¾" x 71⁄16" Open End - No Latex Seal on Flap
3¾" x 71⁄16" Open End - Latex Seal on Flap

Coin Envelopes

Description:

Coin Envelope Sizes:
3" x 4½"
3â…›" x 5½"
3½" x 6½" 

Square Envelopes

Description:

Square Envelope Sizes:
3 1/4"x 3 1/4"
5" x 5"
5 1/2" x 5 1/2"
5 3/4" x 5 3/4"
6" x 6"
6 1/2" x 6 1/2"
7" x 7"
7 1/2" x 7 1/2"
8" x 8"
8 1/2" x 8 1/2"
9" x 9"
9 1/2" x 9 1/2"

Document Envelopes

Description:

Document Envelope Sizes:
5"x 11"
9" x 12"
10" x 13"
10 x 15"
12" x 18"

Envelope Sizing Guide
First Dimension = Height
Second Dimension = Length
Example: For the #10 Envelope, the height is 4 â…›" and the length is 9 ½".