What are the best practices for business card font size?

Sizing is a hierarchy problem: your name should lead, contact details should follow, and nothing should strain the eye.

• Use two or three size levels so the layout reads at a glance, and keep body details consistent in size so the card looks orderly.
• The typeface matters as much as the number: clean sans-serifs stay readable around 8pt and stay sharp at small sizes, while serif and script faces usually need 10pt or more.
• Factor in card size, how much text you are fitting, and any raised or foil finishes, and never sacrifice legibility for style.
• Never drop below 7pt for any text, including the fine print.
• Readable type is also a quiet marketing asset: properly sized text reads as professional and builds trust, a name that pops and a clear phone number get the card used, and cramped tiny text sends it straight to the bin.
• Print a proof at actual size and read it at arm's length before ordering, since screens misjudge scale.