Credit cards and debit cards are the same size: 85.6 mm × 53.98 mm, or 3.370 in× 2.125 in. They both have rounded corners and a thickness of 0.76 mm (0.029 in). Why do all credit cards have chips?

The size, age or nature of your company doesn’t matter for business card eligibility. ... The credit card issuer may have follow-up questions about the business during the application process.