ISO 216 Card Size
An ISO 216 business card measures 52 × 74 mm (2.05 × 2.91 in). It is A8, the ISO 216 size some countries use for a business card instead of a national trade convention.
ISO 216 measures 52 millimetres wide and 74 millimetres tall.
ISO 216 Dimensions in Each Unit
ISO 216 is 52 × 74 mm, which is 5.2 × 7.4 cm or 2.05 × 2.91 in. The size is set by ISO 216.
| Unit | Width | Height | Width × height | Copy |
|---|---|---|---|---|
| Millimetres (mm) | 52 | 74 | 52 × 74 mm | |
| Centimetres (cm) | 5.2 | 7.4 | 5.2 × 7.4 cm | |
| Metres (m) | 0.052 | 0.074 | 0.052 × 0.074 m | |
| Inches (in) | 2.05 | 2.91 | 2.05 × 2.91 in | |
| Feet (ft) | 0.17 | 0.24 | 0.17 × 0.24 ft | |
| Points (pt) | 147 | 210 | 147 × 210 pt | |
| Picas (pc) | 12.3 | 17.5 | 12.3 × 17.5 pc | |
| Pixels at 72 DPI | 147 | 210 | 147 × 210 px | |
| Pixels at 150 DPI | 307 | 437 | 307 × 437 px | |
| Pixels at 300 DPI | 614 | 874 | 614 × 874 px | |
| Pixels at 600 DPI | 1228 | 1748 | 1228 × 1748 px |
Pixel counts follow from the resolution: pixels = millimetres ÷ 25.4 × DPI. More on the DPI and pixels page.
ISO 216 Shape and Area
| Aspect ratio | 1 : 1.423 (√2) |
|---|---|
| Area | 0.00385 m² · 3,848 mm² |
| Diagonal | 90.4 mm · 3.56 in |
| ISO 216 tolerance | ± 1.5 mm each side |
| Closest US size | US & Canada business card (88.9 × 50.8 mm) |
| Governing standard | ISO 216:2007 |
ISO 216 to Scale
Put ISO 216 next to another size in the comparison tool.
Printing an ISO 216 Business Card
The same 0.125 in (3 mm) bleed and safe-area margin used across the print industry applies to ISO 216. Toggle each layer below to see it against this size.
Who Uses an ISO 216 Business Card
An ISO 216 business card is A8, so a printer, template or paper stock already set up for the ISO A series can produce it without a special size. Countries that standardise office stationery on ISO 216, rather than a national or regional trade convention, extend the same series down to business cards.
How ISO 216 Compares with Other Business Card Sizes
ISO 216 is both the smallest by area and the only size on this page that keeps the 1 : √2 ISO ratio. Laid flat as a card (74 by 52 mm) rather than in the portrait orientation shown above, it is about 15 mm narrower than the US & Canada card, though nearly the same height.
Frequently Asked Questions
What size is an ISO 216 business card?
52 by 74 mm, or 2.05 by 2.91 inches. It is exactly A8, the smallest commonly used size in the ISO A series.
Why is an ISO 216 card taller than a US card?
A8 keeps the ISO 216 1 : √2 shape, so it is narrower and taller than the US 3.5 by 2 in card, which uses a different ratio.
Which countries use the ISO 216 business card size?
Countries that standardise stationery on ISO 216 sometimes extend it to cards, though a national or European convention is still more common.
What bleed should I add to an ISO 216 business card?
3 mm on each side, following the same convention as the rest of the ISO series.
Does ISO 216 A8 fit a standard business card holder?
Not reliably. At 52 by 74 mm it is narrower and taller than all the other national conventions on this page, so a holder cut for a US, European or Asian card will often be the wrong shape.
Business Card Sizes
✓ Dimensions per ISO 216:2007; unit values derived by formula. Reviewed . Editorial Process →