https://size-charts.com/topics/paper-size-chart/business-card-dimensions-guide-standard-and-international/
Business Card Dimensions: Standard, International & Special Sizes
Apr 26, 2023 - Business cards are important and cost-effective marketing tools. To get you started, take a look at our business card dimensions chart.
business card dimensionsstandard internationalspecialsizes
https://www.shopify.com/hk-en/blog/business-card-dimensions
Best Business Card Dimensions and Design Considerations (2025) - Shopify Hong Kong SAR
A standard business card size (3.5 inches by 2 inches) is a reliable choice, but there are also many different sizes you can use to make a lasting impression.
business card dimensionsdesign considerations