Reference Charts for Common Envelope Sizes


Reference Charts for Common Envelope Sizes
Commercial and Official Envelopes, Booklet Envelopes, Window Envelopes, Announcement Envelopes, Baronial Envelopes

Commercial / Official Sizes
( Commercial Flap; unless noted)
No. Inches Millimeters
6 1/4
3 1/2 x 6
89 x 152
6 3/4
3 5/8 x 6 1/2
92 x 165
7
3 3/4 x 6 3/4
95 x 171
Monarch (pointed Flap)
3 7/8 x 7 1/2
98 x 191
8 5/8
3 5/8 x 8 5/8
92 x 219
9
3 7/8 x 8 7/8
98 x 225
10 (also Square Flap)
4 1/8 x 9 1/2
105 x 241
11 (also Square Flap)
4 1/2 x 10 3/8
114 x 264
12 (also Square Flap)
4 3/4 x 11
121 x 279
14 (also Square Flap)
5 x 11 1/2
127 x 292
Booklet (Wallet Flap)
No. Inches Millimeters
3
4 3/4 x 6 1/2
121 x 165
5
5 1/2 x 8 1/8
140 x 206
6
5 3/4 x 8 7/8
146 x 225
6 1/2
152 x 229
6 5/8
6 x 9 1/2
152 x 241
6 3/4
6 1/2 x 9 1/2
165 x 241
7 1/4
7 x 10
178 x 254
7 1/2
7 1/2 x 10 1/2
191 x 267
9
8 3/4 x 11 1/2
222 x 292
9 1/2
9 x 12
229 x 305
10
9 1/2 x 12 5/8
241 x 321
13
10 x 13
254 x 330
Window (Commercial Flap)
No. Inches Millimeters
6 1/4
3 1/2 x 6
89 x 152
6 3/4
3 5/8 x 6 1/2
92 x 165
7
3 3/4 x 6 3/4
95 x 171
Monarch
3 7/8 x 7 1/2
98 x 191
8 5/8
3 5/8 x 8 5/8
92 x 219
9
3 7/8 x 8 7/8
98 x 225
10
4 1/8 x 9 1/2
105 x 241
11
4 1/2 x 10 3/8
114 x 264
12
4 3/4 x 11
121 x 279
14
5 x 11 1/2
127 x 292
Announcement (Square Flap)
No. Inches Millimeters
A-2
111 x 146
A-6
4 3/4 x 6 1/2
121 x 165
A-7
5 1/4 x 7 1/4
133 x 184
A-8
5 1/2 x 8 1/8
140 x 206
A-9
 
A-10
6 x 9 1/2
152 x 241
Slimline
3 7/8 x 8 7/8
98 x 225
Baronial (Pointed Flap)
No. Inches Millimeters
4
3 5/8 x 5 1/8
92 x 130
5
4 1/8 x 5 1/2
105 x 140
5 1/2
111 x 146
6
4 3/4 x 6 1/2
121 x 165
Lee
5 1/4 x 7 1/4
133 x 184