Standard Envelope Sizes and Styles
When it comes to ordering an envelope, it's important to understand which sizes are standard and most popular. Listed below is a wide range of standard sizes for a variety of different envelope types and styles.
Click any of the envelope styles below to jump to their standard sizes:
Commercials Catalogs Booklets Announcements Machine Insertable Announcements Baronials Coins Commercials Squares
Looking for a quick reference in your office? Request a complimentary copy of our NEEDLINK Envelope Wall Chart.
Commercials| Envelope # | Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|---|
| #5 | 3-1/8 x 5-1/2 | 2-7/8 x 5-1/4 | 79 x 140 | 73 x 133 |
| #6-1/4 | 3-1/2 x 6 | 3-1/4 x 5-3/4 | 89 x 152 | 83 x 146 |
| #6-3/4 | 3-5/8 x 6-1/2 | 3-3/8 x 6-1/4 | 92 x 165 | 86 x159 |
| #7 | 3-3/4 x 6-3/4 | 3-1/2 x 6-1/2 | 95 x 171 | 89 x 165 |
| #7-1/2 | 3-15/16 x 7-1/2 | 3-11/16 x 7-1/4 | 100 x 191 | 94 x 184 |
| #8-5/8 | 3-5/8 x 8-5/8 | 3-3/8 x 8-3/8 | 92 x 219 | 86 x 213 |
| #9 | 3-7/8 x 8-7/8 | 3-5/8 x 8-5/8 | 98 x 225 | 92 x 219 |
| #10 | 4-1/8 x 9-1/2 | 3-7/8 x 9-1/4 | 105 x 241 | 98 x 235 |
| #11 | 4-1/2 x 10-3/8 | 4-1/4 x 10-1/8 | 114 x 264 | 108 x 257 |
| #12 | 4-3/4 x 11 | 4-1/2 x 10-3/4 | 121 x 279 | 114 x 273 |
| #14 | 5 x 11-1/2 | 4-3/4 x 11-1/4 | 127 x 292 | 121 x 286 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Open-End Catalogs| Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|
| 4 x 6-3/8 | 3-3/4 x 6-1/8 | 102 x 162 | 95 x 156 |
| 4-5/8 x 6-3/4 | 4-3/8 x 6-1/2 | 117 x 171 | 111 x 165 |
| 5 x 7-1/2 | 4-3/4 x 7-1/4 | 127 x 191 | 121 x 184 |
| 5-1/2 x 7-1/2 | 5-1/4 x 7-1/4 | 140 x 191 | 133 x 184 |
| 5-1/2 x 8-1/4 | 5-1/4 x 8 | 140 x 210 | 133 x 203 |
| 6 x 9 | 5-3/4 x 8-3/4 | 152 x 229 | 146 x 222 |
| 6-1/2 x 9-1/2 | 6-1/4 x 9-1/4 | 165 x 241 | 159 x 235 |
| 7-1/2 x 10-1/2 | 7-1/4 x 10-1/4 | 191 x 267 | 184 x 260 |
| 8-1/4 x 11-1/4 | 8 x 11 | 210 x 286 | 203 x 279 |
| 8-3/4 x 11-1/2 | 8-1/2 x 11-1/4 | 222 x 292 | 216 x 286 |
| 9 x 12 | 8-3/4 x 11-3/4 | 229 x 305 | 222 x 298 |
| 9-1/2 x 12-1/2 | 9-1/4 x 12-1/4 | 241 x 318 | 235 x 311 |
| 10 x 13 | 9-3/4 x 12-3/4 | 254 x 330 | 248 x 324 |
| 10 x 15 | 9-3/4 x 14-3/4 | 254 x 381 | 248 x 375 |
| 11-1/2 x 12-1/2 | 11-1/4 x 12-1/4 | 292 x 318 | 286 x 311 |
| 12 x 15-1/2 | 11-3/4 x 15-1/4 | 304 x 393 | 298 x 387 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Open-Side Booklets| Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|
| 5-1/2 x 8-1/2 | 5-1/4 x 8-1/4 | 140 x 216 | 133 x 210 |
| 5-3/4 x 8-7/8 | 5-1/2 x 8-5/8 | 146 x 225 | 140 x 219 |
| 6 x 9 | 5-3/4 x 8-3/4 | 152 x 229 | 146 x 222 |
| 6 x 9-1/2 | 5-3/4 x 9-1/4 | 152 x 241 | 146 x 235 |
| 6-1/2 x 9-1/2 | 6-1/4 x 9-1/4 | 165 x 241 | 159 x 235 |
| 7-1/2 x 10-1/2 | 7-1/4 x 10-1/4 | 191 x 267 | 184 x 260 |
| 8-3/4 x 11-1/2 | 8-1/2 x 11-1/4 | 222 x 292 | 216 x 286 |
| 9 x 12 | 8-3/4 x 11-3/4 | 229 x 305 | 222 x 298 |
| 9-1/2 x 12-5/8 | 9-1/4 x 12-3/8 | 241 x 321 | 235 x 314 |
| 10 x 13 | 9-3/4 x 12-3/4 | 254 x 330 | 248 x 324 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Announcements| Envelope # | Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|---|
| A-2 | 4-3/8 x 5-3/4 | 4-1/8 x 5-1/2 | 111 x 146 | 105 x 140 |
| A-6 | 4-3/4 x 6-1/2 | 4-1/2 x 6-1/4 | 121 x 165 | 114 x 159 |
| A-7 | 5-1/4 x 7-1/4 | 5 x 7 | 133 x 184 | 127 x 178 |
| A-8 | 5-1/2 x 8-1/8 | 5-1/4 x 7-7/8 | 140 x 206 | 133 x 200 |
| A-10 | 6 x 9-1/2 | 5-3/4 x 9-1/4 | 152 x 241 | 146 x 235 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Machine Insertable Announcements| Envelope # | Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|---|
| A-1 | 3-5/8 x 5-1/8 | 3-3/8 x 4-7/8 | 92 x 130 | 86 x 124 |
| A-2 | 4-3/8 x 5-3/4 | 4-1/8 x 5-1/2 | 111 x 146 | 105 x 140 |
| A-6 | 4-3/4 x 6-1/2 | 4-1/2 x 6-1/4 | 121 x 165 | 114 x 159 |
| A-7 | 5-1/4 x 7-1/4 | 5 x 7 | 133 x 184 | 127 x 178 |
| A-8 | 5-1/2 x 8-1/8 | 5-1/4 x 7-7/8 | 140 x 206 | 133 x 200 |
| A-9 | 5-3/4 x 8-3/4 | 5-1/2 x 8-1/2 | 146 x 222 | 140 x 216 |
| A-10 | 6 x 9-1/2 | 5-3/4 x 9-1/4 | 152 x 241 | 146 x 235 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Baronials| Envelope # | Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|---|
| * | 3-9/16 x 5-9/16 | 3-5/16 x 5-5/16 | 90 x 141 | 84 x 135 |
| 4 | 3-5/8 x 5-1/8 | 3-3/8 x 4-7/8 | 92 x 130 | 86 x 124 |
| 5 | 4-1/8 x 5-5/8 | 3-7/8 x 5-3/8 | 105 x 143 | 98 x 137 |
| 5-1/2 | 4-3/8 x 5-3/4 | 4-1/8 x 5-1/2 | 111 x 146 | 105 x 140 |
| 6 | 4-3/4 x 6-1/2 | 4-1/2 x 6-1/4 | 121 x 165 | 114 x 159 |
| 7-1/2 | 5-1/2 x 7-1/2 | 5-1/4 x 7-1/4 | 140 x 191 | 133 x 184 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Coins| Envelope # | Dimensions (Inches): | Dimensions (Millimeters) |
|---|---|---|
| 00 | 1-11/16 x 2-3/4 | 43 x 70 |
| 1A | 2-1/4 x 3-1/2 | 57 x 89 |
| 2AA | 2-1/2 x 3-1/2 | 64 x 89 |
| 3B | 2-1/2 x 4-1/4 | 64 x 114 |
| 4-1/2D | 3 x 4-7/8 | 76 x 124 |
| 5E | 2-7/8 x 5-1/4 | 73 x 133 |
| 5-1/2F | 3-1/8 x 5-1/2 | 79 x 140 |
| 6G | 3-3/8 x 6 | 86 x 152 |
| 7H | 3-1/2 x 6-1/2 | 89 x 165 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Collections| Envelope # | Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|---|
| #6-1/4 | 3-1/2 x 6-1/4 | 3-1/4 x 6 | 89 x 159 | 83 x 152 |
| #6-3/4 | 3-5/8 x 6-1/2 | 3-3/8 x 6-1/4 | 92 x 165 | 86 x 159 |
| #9 | 3-7/8 x 8-7/8 | 3-5/8 x 8-5/8 | 98 x 225 | 92 x 219 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)
Squares| Dimensions (Inches): | Max. Enclosure Size (Inches): | Dimensions (Millimeters) | Max. Enclosure Size (Millimeters): |
|---|---|---|---|
| 5 x 5 | 4-3/4 x 4-3/4 | 127 x 127 | 121 x 121 |
| 5-1/2 x 5-1/2 | 5-1/4 x 5-1/4 | 140 x 140 | 133 x 133 |
| 6 x 6 | 5-3/4 x 5-3/4 | 152 x 152 | 146 x 146 |
| 6-1/2 x 6-1/2 | 6-1/4 x 6-1/4 | 165 x 165 | 159 x 159 |
| 7-1/2 x 7-1/2 | 7-1/4 x 7-1/4 | 191 x 191 | 184 x 184 |
| 9 x 9 | 8-3/4 x 8-3/4 | 228 x 229 | 222 x 222 |
| 10 x 10 | 9-3/4 x 9-3/4 | 254 x 254 | 248 x 248 |
| 13 x 13 | 12-3/4 x 12-3/4 | 330 x 330 | 324 x 324 |
(Note: These are only standard sizes, to view all of our available sizes and styles, you can Browse our Products or View our Catalog.)