Credit card size in cm
A credit or bank card is exactly 8.56 × 5.4 cm (85.60 × 53.98 mm, or 3.37 × 2.13 inches). This is a strict global standard — every card, from every bank and country, is this exact size.
8.56 cmwidth
5.4 cmheight
0.76 mmthickness
The exact standard
| Measure | mm | cm | inches |
|---|---|---|---|
| Width | 85.60 mm | 8.56 cm | 3.370 in |
| Height | 53.98 mm | 5.40 cm | 2.125 in |
| Thickness | 0.76 mm | 0.076 cm | 0.030 in |
This is ISO/IEC 7810 ID-1 — the same standard used for driver's licences, ID cards and most gift cards, which is why they all fit the same wallet slot regardless of issuer or country.
Why it's useful as a size reference
Because it's an exact, universal standard, a credit card is a handy real-world object to compare other sizes against — it's why product photos often include one next to small items.
Frequently asked questions
What is the exact size of a credit card?
85.60 × 53.98 mm (8.56 × 5.4 cm, or 3.37 × 2.13 inches) — an ISO/IEC 7810 standard.
Are all credit cards the same size?
Yes — virtually all bank cards, credit cards and ID cards worldwide follow the same ISO/IEC 7810 ID-1 standard.
How thick is a credit card?
About 0.76 mm.