B10 Paper Size
B10 paper size measures 31 × 44 mm. The Dimensions of B10 Paper are 1.22 by 1.73 inches, 3.1 by 4.4 centimetres, 366 by 520 pixels at 300 DPI, and 88 by 125 points. It is half of B9. Its most common use is stamps.
B10 measures 31 millimetres wide and 44 millimetres tall.
Dimensions of B10 Paper
| Unit | Width | Height | Width × height | Copy |
|---|---|---|---|---|
| Millimetres (mm) | 31 | 44 | 31 × 44 mm | |
| Centimetres (cm) | 3.1 | 4.4 | 3.1 × 4.4 cm | |
| Metres (m) | 0.031 | 0.044 | 0.031 × 0.044 m | |
| Inches (in) | 1.22 | 1.73 | 1.22 × 1.73 in | |
| Feet (ft) | 0.1 | 0.14 | 0.1 × 0.14 ft | |
| Points (pt) | 88 | 125 | 88 × 125 pt | |
| Picas (pc) | 7.3 | 10.4 | 7.3 × 10.4 pc | |
| Pixels at 72 DPI | 88 | 125 | 88 × 125 px | |
| Pixels at 150 DPI | 183 | 260 | 183 × 260 px | |
| Pixels at 300 DPI | 366 | 520 | 366 × 520 px | |
| Pixels at 600 DPI | 732 | 1039 | 732 × 1039 px |
Pixel counts follow from the resolution: pixels = millimetres ÷ 25.4 × DPI. More on the DPI and pixels page.
B10 Paper Format
B10 is half of B9, the smallest in the B Paper Sizes. Put B10 next to another size in the comparison tool.
B10 Size in Millimeters (mm)
B10 is 31 × 44 mm (31 mm wide, 44 mm tall). Millimetres are the base unit of ISO 216, so these are the exact figures paper mills and print shops cut to. Page-setup dialogs outside the US expect ISO B-series sizes entered in mm.
B10 Size in Centimeters (cm)
B10 is 3.1 × 4.4 cm. Centimetres are the handy unit for checking a sheet against a school ruler or giving a rough size; the figure is the millimetre value divided by ten.
B10 Size in Inches
B10 is 1.22 × 1.73 inches. Inches come up when B10 is opened in US-configured software or lined up against the nearest A size. One inch is fixed at 25.4 mm.
B10 Size in Pixels
At 300 DPI B10 is 366 × 520 px; at 72 DPI it is 88 × 125 px. Pixel dimensions are what you type into the new-document box in Photoshop, GIMP or Figma, and they scale with the DPI you choose.
B10 in Pixels at 72 DPI (Screen)
B10 is 88 × 125 px at 72 DPI. This is the legacy screen resolution, used for on-screen mockups, web previews and wireframes where physical print size is not the point.
B10 in Pixels at 300 DPI (Print)
B10 is 366 × 520 px at 300 DPI. 300 DPI is the print-quality benchmark, so set an B10 canvas to this pixel count for anything going to a commercial or a good home printer.
B10 Size in Points (pt)
B10 is 88 × 125 points. Points are the unit of PDF, InDesign and LaTeX page geometry, where 72 points make one inch. A page set to 88 by 125 pt exports as B10.
B10 Shape and Area
| Aspect ratio | 1 : 1.419 (√2) |
|---|---|
| Area | 0.00136 m² · 1,364 mm² |
| Diagonal | 53.8 mm · 2.12 in |
| ISO 216 tolerance | ± 1.5 mm each side |
| Governing standard | ISO 216:2007 |
Frequently Asked Questions
What is B10 Paper Size?
A piece of B10 paper measures 31 × 44 mm (1.22 × 1.73 in). It is one of the ISO 216 B-series sizes, the smallest in the series, exactly half of B9.
What are the Uses of B10 Paper?
B10 is used for postage stamps, micro-labels and asset tags, seals and stickers.
How long is a piece of B10 paper?
B10 is 44 mm long on the longer edge and 31 mm on the shorter edge, which is 4.4 cm by 3.1 cm.
How long is B10 paper in inches?
The long edge of B10 is 1.73 inches and the short edge is 1.22 inches.
How long is a piece of B10 paper in cm?
B10 is 4.4 cm long by 3.1 cm wide.
B Paper Sizes
✓ Dimensions per ISO 216:2007; unit values derived by formula. Reviewed . Editorial Process →