US envelope sizes
#9 envelope size
#9 envelope measures 98.4 x 225.4 mm (3.88 x 8.88 in). Reply envelope that fits inside a #10.
98.4 x 225.4millimetres
3.88 x 8.88inches
1,162 x 2,662pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 98.4 x 225.4 mm |
| Centimetres | 9.84 x 22.54 cm |
| Inches (decimal) | 3.875 x 8.875 in |
| Inches (fraction) | 3 7/8 x 8 7/8 in |
| Points (1/72 in) | 279 x 639 pt |
| Picas | 23.25 x 53.25 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 279 x 639 px | 0.2 MP |
| 96 dpi | 372 x 852 px | 0.3 MP |
| 150 dpi | 581 x 1,331 px | 0.8 MP |
| 200 dpi | 775 x 1,775 px | 1.4 MP |
| 300 dpi | 1,162 x 2,662 px | 3.1 MP |
| 600 dpi | 2,325 x 5,325 px | 12.4 MP |
300 dpi is the usual target for printed photos and artwork; 72–96 dpi is screen resolution.
Document size with bleed
| Bleed | Millimetres | Inches |
|---|---|---|
| 3 mm bleed (each side) | 104.4 x 231.4 mm | 4.111 x 9.111 in |
| 0.125 in bleed (each side) | 104.8 x 231.8 mm | 4.125 x 9.125 in |
How many #9 envelope fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| A4 | 2-up | 2-up |
| A3 | 4-up | 4-up |
| SRA3 | 4-up | 4-up |
| Letter | 2-up | 2-up |
| Tabloid 11 x 17 in | 4-up | 4-up |
| 12 x 18 in | 6-up | 4-up |
| 13 x 19 in (Super B) | 6-up | 6-up |
| B2 (offset) | 15-up | 12-up |
| B1 (offset) | 30-up | 27-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Similar sizes
Frequently asked questions
What are the dimensions of #9 envelope?
#9 envelope is 98.4 x 225.4 mm, which is 3.88 x 8.88 in (3 7/8 x 8 7/8 in).
How many pixels is #9 envelope at 300 DPI?
1,162 x 2,662 pixels at 300 dpi, or 581 x 1,331 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.