B0 paper size
1000 × 1414 mm
39.37 × 55.67 inches · 100 × 141.4 cm · aspect ratio 1:1.41
B0 size is 1000 × 1414 mm. Those are the B0 dimensions a printer works to; the same sheet in centimetres, inches, points and pixels is below.
What B0 is for
The B series sits geometrically between consecutive A sizes — each B size is the geometric mean of the A sizes above and below it — which gives a second ladder of sizes for jobs where the A steps are too coarse. B0 at 1000 × 1414 mm is larger than A0 and used for billboards and large-format advertising. Note that ISO B and JIS B are not the same: Japan's B0 is 1030 × 1456 mm, and a file sized for one will not fit the other.
B0 dimensions in every unit
| Unit | Width | Height |
|---|---|---|
| Millimetres | 1000 mm | 1414 mm |
| Centimetres | 100 cm | 141.4 cm |
| Inches | 39.37 in | 55.67 in |
| Points (PostScript) | 2835 pt | 4008 pt |
B0 in pixels
Pixel dimensions depend entirely on the resolution you are working at — there is no single "pixel size" for a sheet of paper. B0 size in pixels has every resolution, with file sizes and canvas setup.
| Resolution | Pixels | Use |
|---|---|---|
| 72 DPI | 2835 × 4008 | Screen preview only — far too coarse to print |
| 150 DPI | 5906 × 8350 | Draft printing, internal documents |
| 300 DPI | 11811 × 16701 | The standard for commercial print |
| 600 DPI | 23622 × 33402 | Fine detail, line art, archival scanning |
Setting up a print document? Use 300 DPI and add 3 mm of bleed on every edge unless your printer specifies otherwise.
How B0 relates to the rest of the series
B0 is B0 halved no times — it is the base of the series. Halving a sheet across its longer side is what generates the next size down, and because the sides are in a 1:√2 ratio the proportions survive every fold — which is the entire reason the series exists.
B0 is defined as one square metre of area with sides in a 1:√2 ratio. Every other size in the series is derived from it by halving, which is why none of the dimensions are round numbers.
Scaling to the next size up or down is a factor of √2 ≈ 1.414 on each edge, so enlarging B0 to the next size is 141% on a photocopier and reducing it is 71%. Those two numbers are on the preset buttons of most copiers for exactly this reason, and they are the same for every size in the series.
About B0
The B series sits geometrically between consecutive A sizes, giving a size range for posters and books where A is too coarse.
Other ISO B series sizes
| Size | Millimetres | Inches |
|---|---|---|
| B1 | 707 × 1000 mm | 27.83 × 39.37 in |
| B2 | 500 × 707 mm | 19.69 × 27.83 in |
| B3 | 353 × 500 mm | 13.9 × 19.69 in |
| B4 | 250 × 353 mm | 9.84 × 13.9 in |
| B5 | 176 × 250 mm | 6.93 × 9.84 in |
| B6 | 125 × 176 mm | 4.92 × 6.93 in |
| B7 | 88 × 125 mm | 3.46 × 4.92 in |
| B8 | 62 × 88 mm | 2.44 × 3.46 in |
| B9 | 44 × 62 mm | 1.73 × 2.44 in |
| B10 | 31 × 44 mm | 1.22 × 1.73 in |
Frequently asked questions
What size is B0 in mm?
1000 × 1414 mm.
What size is B0 in inches?
39.37 × 55.67 inches.
What size is B0 in pixels?
There is no single answer — it depends on resolution. At the print standard of 300 DPI it is 11811 × 16701 pixels; at 72 DPI it is only 2835 × 4008.