ISO B series
B5 paper size
B5 measures 176 x 250 mm (6.93 x 9.84 in). Books, magazines and notebooks.
176 x 250millimetres
6.93 x 9.84inches
2,079 x 2,953pixels @ 300 dpi
Dimensions in every unit
| Unit | Width x height |
|---|---|
| Millimetres | 176 x 250 mm |
| Centimetres | 17.6 x 25 cm |
| Inches (decimal) | 6.929 x 9.843 in |
| Inches (fraction) | 6 15/16 x 9 13/16 in |
| Points (1/72 in) | 498.9 x 708.7 pt |
| Picas | 41.57 x 59.06 pc |
Pixel dimensions by resolution
| Resolution | Pixels | Megapixels |
|---|---|---|
| 72 dpi | 499 x 709 px | 0.4 MP |
| 96 dpi | 665 x 945 px | 0.6 MP |
| 150 dpi | 1,039 x 1,476 px | 1.5 MP |
| 200 dpi | 1,386 x 1,969 px | 2.7 MP |
| 300 dpi | 2,079 x 2,953 px | 6.1 MP |
| 600 dpi | 4,157 x 5,906 px | 24.6 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) | 182 x 256 mm | 7.165 x 10.079 in |
| 0.125 in bleed (each side) | 182.4 x 256.4 mm | 7.179 x 10.093 in |
How many B5 fit on a press sheet
| Sheet | Without bleed | With 3 mm bleed |
|---|---|---|
| A4 | 1-up | 1-up |
| A3 | 2-up | 2-up |
| SRA3 | 2-up | 2-up |
| Letter | 1-up | 1-up |
| Tabloid 11 x 17 in | 2-up | 2-up |
| 12 x 18 in | 2-up | 2-up |
| 13 x 19 in (Super B) | 2-up | 2-up |
| B2 (offset) | 8-up | 4-up |
| B1 (offset) | 16-up | 10-up |
Simple grid imposition with no gutters or gripper margin; real layouts may fit fewer.
Envelopes for B5
| Fold | Folded size | Envelopes that fit |
|---|---|---|
| Folded in half | 125 x 176 mm | A7 envelope, A9 envelope, 6 x 9 booklet envelope |
| Folded in thirds | 83.3 x 176 mm | Monarch envelope, 1/3 A4, #9 envelope |
The √2 system
B5 has an aspect ratio of 1 : 1.4205 — close to √2 (1.4142). Folding or cutting it in half across the long side produces the next smaller size in the series with the same proportions, and two sheets side by side form the next larger size. This is why scaling between sizes in the series (for example on a photocopier) never crops or distorts the page.
Similar sizes
Frequently asked questions
What are the dimensions of B5?
B5 is 176 x 250 mm, which is 6.93 x 9.84 in (6 15/16 x 9 13/16 in).
How many pixels is B5 at 300 DPI?
2,079 x 2,953 pixels at 300 dpi, or 1,039 x 1,476 at 150 dpi.
Sources & data
- Dimensions per the relevant standard; see sources.