Credit Card Size Calculator
Credit Card Size Calculator Standard Type ISO/IEC 7810 ID-1 (Standard)Custom DimensionsID-2 (Passport)ID-3 (Travel Documents) Custom Width mmcminches Custom Height mmcminches Corner Radius mmcminches Card Thickness mmmil (thousandth inch)inches Material Type PVCPETPolycarbonateMetalWoodPaperCustom Quantity Calculate Reset Card Width mm Copy Card Height mm Copy Corner Radius mm Copy Thickness mm Copy Card Area sq mm Copy Card…
Credit cards may look simple, but their size is strictly standardized worldwide. That’s why they always fit perfectly into wallets, ATMs, and payment machines. If you’re a graphic designer, product manufacturer, or printer, using the correct dimensions is crucial.
The Credit Card Size Calculator provides instant conversions of the official credit card size into millimeters, inches, and pixels—so your designs and products are always accurate.
What Is the Standard Credit Card Size?
According to the ISO/IEC 7810 ID-1 standard, the official credit card dimensions are:
- Width: 85.60 mm (3.370 in)
- Height: 53.98 mm (2.125 in)
- Thickness: 0.76 mm (0.030 in)
- Corner radius: 3.18 mm (1/8 in)
These same dimensions apply to:
- Debit cards
- ATM cards
- Driver’s licenses and ID cards (in most countries)
That’s why all cards can be used interchangeably in standard machines.
What Does a Credit Card Size Calculator Do?
A Credit Card Size Calculator converts these standard dimensions into the units you need:
- Millimeters (mm) – for manufacturing and precise measurements
- Inches (in) – commonly used in the US and design software
- Pixels (px) – for digital design and printing, based on DPI (dots per inch)
For example, at 300 DPI (print quality):
- 85.60 mm × 53.98 mm ≈ 1006 × 638 pixels
At 72 DPI (screen resolution):
- 85.60 mm × 53.98 mm ≈ 242 × 153 pixels
How to Use the Credit Card Size Calculator
- Choose your unit of measurement – mm, inches, or pixels.
- Enter DPI value (for pixels) – e.g., 72, 150, or 300 DPI.
- Get exact dimensions instantly.
This helps whether you’re designing a digital mockup, printing a physical card, or manufacturing a cardholder or ATM slot.
Practical Example
Imagine you’re designing a credit card mockup for an app interface.
- Standard card size = 85.60 mm × 53.98 mm
- At 150 DPI = 506 × 319 pixels
If you’re making a wallet prototype, you’d use:
- 85.60 mm width, 53.98 mm height, and 0.76 mm thickness
This ensures cards fit properly without being too tight or too loose.
Benefits of a Credit Card Size Calculator
✔ Accurate dimensions – No risk of design or manufacturing errors
✔ Multiple units – MM, inches, or pixels depending on your project
✔ Time saver – No manual math conversions needed
✔ Print & design ready – Get pixel-perfect values for Photoshop, Illustrator, etc.
✔ Universal standard – Works globally across industries
Tips for Designers and Manufacturers
- Use 300 DPI for high-quality print designs.
- Add bleed margins (1–2 mm) when preparing cards for printing.
- Keep aspect ratio fixed – credit cards always have 1.586:1 ratio.
- Include rounded corners – 3.18 mm radius for a professional look.
- Check prototypes physically when designing wallets, sleeves, or readers.
FAQ: Credit Card Size Calculator
1. What is the standard size of a credit card?
85.60 mm × 53.98 mm × 0.76 mm (ISO/IEC 7810 ID-1 standard).
2. Are all credit cards the same size?
Yes, almost all follow the same ISO standard.
3. Do debit cards have the same dimensions?
Yes, debit, ATM, and ID cards typically share the same size.
4. What is the aspect ratio of a credit card?
Approximately 1.586:1.
5. What’s the pixel size at 300 DPI?
1006 × 638 pixels.
6. What’s the pixel size at 72 DPI?
242 × 153 pixels.
7. Why is DPI important?
DPI determines how many pixels make up a printed image.
8. Do credit cards have rounded corners?
Yes, radius of about 3.18 mm.
9. Can I use the calculator for business cards?
No, business cards have different size standards.
10. Do all countries use the same credit card size?
Yes, the ISO standard is global.
11. Can I design custom-sized cards?
Yes, but they may not fit ATMs, wallets, or readers.
12. What is the thickness of a credit card?
0.76 mm (0.030 in).
13. Are metal credit cards thicker?
No, they maintain the same thickness but are heavier.
14. Do driver’s licenses follow the same dimensions?
Yes, most IDs also follow the ID-1 format.
15. Why is the credit card size standardized?
To ensure universal compatibility with machines and wallets.
16. What is the weight of a standard card?
Around 5 grams (varies by material).
17. Can I calculate high-resolution pixel sizes?
Yes, just enter a higher DPI in the calculator.
18. Can this tool be used for 3D modeling?
Yes, accurate dimensions help in CAD designs and prototypes.
19. Do smart cards (chip-enabled) change size?
No, only functionality changes, not size.
20. Is the Credit Card Size Calculator free?
Yes, most online calculators are free to use.
Final Thoughts
The Credit Card Size Calculator is an essential tool for anyone working with designs, prototypes, or digital mockups. Since all credit cards follow the ISO/IEC 7810 ID-1 standard, this tool ensures you always get the exact size in millimeters, inches, or pixels.