The US Business Card size (1050×600px)
The standard US business card measures 3.5 by 2 inches, and at the 300 DPI resolution commercial printers require that works out to exactly 1050 by 600 pixels. Printing at 300 dots per inch is what keeps small text, logos, and hairline rules looking crisp rather than fuzzy, so sizing your artwork to 1050x600 from the start means the print shop can reproduce your card at its true physical dimensions without resampling.
That 3.5x2 inch footprint is a global convenience: it slips into standard cardholders, wallets, and Rolodex slots, which is exactly why it has stayed the default for decades. The 7:4 aspect ratio is wider than it is tall, giving you a natural landscape canvas for a name, title, and contact details on one side and branding on the other. Because the format is small, restraint reads as professional: generous margins and a clear hierarchy beat a card crammed edge to edge.
One thing to plan for is bleed and safe margins. Most printers ask you to extend background color slightly past the trim edge and to keep text at least a few millimeters inside it, so nothing important gets clipped when the stack is cut. If your printer specifies bleed, add it on top of the 3.5x2 inch trim before exporting. Everything here resizes 100% in your browser with no upload and for free, so your design stays private. Print specs vary by shop, so confirm bleed, DPI, and color settings with your printer before ordering.