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ID Card Sizes & Dimensions
The most common ID card size is CR80, the familiar credit-card-size format used for employee badges, student IDs, membership cards and access credentials. Use this quick reference to compare common ID card dimensions.
| Card Size | Dimensions in Inches | Dimensions in Millimeters | Common Use |
|---|---|---|---|
| CR80 | 3.375" × 2.125" | 85.6 × 54 mm | Standard ID and credit-card size |
| CR79 | 3.303" × 2.051" | 83.9 × 52.1 mm | Often used for adhesive-backed cards |
| CR90 | Approx. 3.63" × 2.37" | Approx. 92 × 60 mm | Oversized ID and credential applications |
| CR100 | Approx. 3.88" × 2.63" | Approx. 98.5 × 67 mm | Large-format and highly visible badges |
Quick Answer: A standard CR80 ID card measures approximately 3.375" wide × 2.125" high (85.6 × 54 mm). Standard CR80 PVC cards are commonly 30mil thick, approximately 0.030 inch.
Card size is only one consideration when selecting an ID card. Material, thickness, magnetic stripe configuration, smart-card or proximity technology and printer compatibility can also affect which card is appropriate for your application.