SizerooGuessroo · All sizes

How thick is a credit card?

0.76 mmAbout 0.03 in · Tiny

0.76 mm, fixed by the ISO/IEC 7810 standard.

0.76 mm
a hair's width

To scale: a credit card's thickness is about 11× bigger than a hair's width.

Think you can guess sizes? Play today's Sizeroo

Things about the same size

Many real things vary in size, so we use a typical or official figure. Spotted a mistake? Email [email protected].