ID card size — mm, cm, inches and pixels
The standard ID card size used for school, college, employee and PVC cards is CR80: 85.6 × 54 mm. Here is the same size in every unit you need for design and printing, plus how many cards fit on a sheet.
In mm and cm
85.6 × 54 mm, i.e. about 8.56 × 5.4 cm. Vertical (portrait) cards are simply 54 × 85.6 mm.
In inches
3.375 × 2.125 inches — the same size as an ATM / debit card.
In pixels
1011 × 638 px at 300 DPI for printing, 2022 × 1276 px at 600 DPI. For screens, about 324 × 204 px at 96 DPI.
Thickness
PVC ID cards are usually 0.76 mm (30 mil) thick. Paper cards are laminated after printing.
Photo size on the card
A passport-style photo area of about 20 × 25 mm works for horizontal cards; vertical cards often use 25 × 30 mm.
Cards per sheet
At true size with cutting gaps: A4 fits 8 horizontal or 9 vertical cards, A3 fits 18 horizontal or 16 vertical.
FAQ
What is the standard ID card size?
CR80: 85.6 × 54 mm (3.375 × 2.125 in). It is used for school, college, office and PVC ID cards in India and worldwide.
What is the ID card size in pixels?
For print at 300 DPI it is 1011 × 638 pixels (horizontal) or 638 × 1011 pixels (vertical). At 600 DPI double those numbers.
What is the ID card size in cm?
About 8.6 × 5.4 cm.
How many ID cards fit on an A4 sheet?
With small cutting gaps, 8 horizontal (2 × 4) or 9 vertical (3 × 3) cards fit on A4 at true size.
Are there other ID card sizes?
Yes — CR79 (83.9 × 51 mm) for adhesive cards and CR100 (98.5 × 67 mm) for larger badges. IDCardGen lets you set any custom width and height.