RESOURCES: ENVELOPE SIZES

Standard United States envelope sizes (in inches):

#6 1/4

3 1/2 x 6

A-2

4 3/8 x 5 3/4

4 Bar

3 5/8 X 5 1/8

#6 3/4

3 5/8 x 6 1/2

A-6

4 3/4 x 6 1/2

5 Bar

4 3/8 X 5 3/4

#7 3/4

3 7/8 x 7 1/2

A-7

5 1/4 x 7 1/4

6 Bar

4 3/4 X 6 1/2

Monarch

3 7/8 x 7 1/2

A-8

5 1/2 x 8 1/8

Lee

5 1/4 X 7 1/4

#8 5/8

3 5/8 x 8 5/8

A-10

6 x 9 1/2

7 Bar

5 1/4 x 7 1/2

#9

3 7/8 x 8 7/8

Slimline

3 7/8 x 8 7/8

 

 

#10

4 1/8 x 9 1/2

10

4 1/8 x 9 1/2

 

 

#11

4 1/2 x 10 3/8

9 1/2

9 x 12

 

 

Commercial Envelope

Specialty Envelope

Baronial Envelope