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Illustration of ISO/IEC 7810 sizes in millimetres
Payment cards commonly use the ISO/IEC 7810 ID-1 format.

ISO/IEC 7810 Identification cards — Physical characteristics is an international standard that defines the physical characteristics for identification cards.[1]

The characteristics specified include:

The standard includes test methods for resistance to heat.[2]

Card sizes

The standard defines four card sizes: ID-1, ID-2, ID-3 and ID-000.[3]

ISO / IEC 7810 sizes
Format Dimensions Usage
mm inch
ID-1 85.6 × 53.98 3.370 × 2.125 Most banking cards and ID cards. Size may also be referred to as CR-80 or TD1
ID-2 105 × 74 4.134 × 2.913 Older-style ID cards. Visas.
ID-3 125 × 88 4.921 × 3.465 Passport booklets
ID-000 25 × 15 0.984 × 0.591 mini-SIM cards

All card sizes have a thickness of 0.68 millimetres (0.027 in) minimum and 0.84 millimetres (0.033 in) maximum.

The standard defines both metric and imperial measurements, noting that:[4]

Numeric values in the SI and/or Imperial measurement system [...] may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should not be intermixed or reconverted. The original design was made using the Imperial measurement system.


The ID-1 format specifies a size of 85.60 by 53.98 millimetres (3+38 in × 2+18 in) and rounded corners with a radius of 2.88–3.48 mm (about 18 in). It is commonly used for payment cards (ATM cards, credit cards, debit cards, etc.). Today it is also used for driving licences and personal identity cards in many countries, automated fare collection system cards for public transport, in retail loyalty cards, and even crew member certificates (particularly for aircrew[5]).


The ID-2 format specifies a size of 105 by 74 millimetres (4+18 in × 2+1516 in). This size is the A7 format. The ID-2 format is used, for example, for visas. It was previously used by the Romanian, Icelandic, German, French and many other identity cards. As of 2024, all European standard identity cards are issued in the ID-1 format. ID-2 was previously also used for driving licences (including Finnish, Swedish and Icelandic driving licences) before those changed to the ID-1 format.


ID-3 specifies a size of 125 by 88 millimetres (4+1516 in × 3+716 in). This size is the B7 format. This format is commonly used for passport booklets.[6]


ID-000 specifies a size of 25 by 15 millimetres (1 in × 916 in), with one corner slightly (3 mm or 18 in) bevelled. The ID-000 size was first defined by ENV 1375–1, Identification card systems — Intersector integrated circuit(s) card additional formats — Part 1: ID-000 card size and physical characteristics.

This size is used for the "mini-SIM" format of subscriber identity modules.

ID-000 size card as part of ID-1 size card

An "informative" (i.e. non-mandatory) annex[7] describes how an ID-000 sized card may be included in an ID-1 size card for processing (e.g. in an ID-1 reader), but with "relief areas around the perimeter of the ID-000 size card to allow it to be removed from the ID-1 size card without punching tools". An ID-1 size card containing an ID-000 size card is denoted as ID-1/000.

Card characteristics

The standard specifies requirements for such physical characteristics as:[8]

See also


  1. ^ ISO/IEC 7810:2019 Identification cards — Physical characteristics
  2. ^ ISO/IEC 7810:2003, Annex A, Resistance to heat test method
  3. ^ ISO/IEC 7810:2003, clause 5, Dimensions of card
  4. ^ ISO/IEC 7810:2003, clause 1, Scope, Note 1
  5. ^ "Documents for crew members". Trüb AG. Archived from the original on 2011-11-12.
  6. ^ "Doc Series" (PDF). Retrieved 2022-11-15.
  7. ^ ISO/IEC 7810 Annex B (informative), ID-000 size card as part of ID-1 size card
  8. ^ ISO/IEC 7810:2003, clause 8, Card characteristics