Credit Card vs Passport Book
From palm sized to hand sized
From palm sized to hand sized. Credit Card and Passport Book feel close enough in size that the comparison is mostly about proportions and silhouette.
Compare in 3D
Passport Book reads as 1.46x the size of Credit Card. Recommended view: Side by side.
Both objects stay in one true-scale scene because the ratio is still readable.
Credit Card to Passport Book
Side by side
1.46x gapBoth objects appear in one shared scene.
Short answer
Credit Card and Passport Book are closer in overall scale than most people expect, so the comparison is really about proportions rather than a dramatic size jump. Passport Book is 1.46x longer than Credit Card. Laid end to end, it takes about 1 credit card to match one passport book.
Credit Card is a standard plastic payment card with rounded corners and a thin flat profile. Passport Book is a closed passport book with a dark cover and a compact rectangular shape. Put together, laid end to end, it takes about 1 credit card to match one passport book.
Credit Card to Passport Book
Best first workspace for this ratio.
A fast gut-check for the size jump.
Dimension breakdown
| Property | Credit Card | Passport Book | Ratio |
|---|---|---|---|
| Characteristic size | 85.6 mm long | 12.5 cm tall | 1.46x |
| Length | 8.56 cm | 12.5 cm | 1.46x |
| Width | 5.4 cm | 8.8 cm | 1.63x |
| Height | 0.8 mm | 1.4 cm | 17.5x |
| Category | everyday | everyday | — |
What people usually misjudge
People usually over-focus on height
Height is the first thing your eye notices here, but height alone does not explain the whole comparison. Credit Card and Passport Book also separate through footprint, thickness, or diameter once you stop treating them like flat outlines.
Volume usually diverges faster than intuition
Even when the silhouettes feel manageable, total occupied space can separate quickly. A rough volume estimate puts one passport book at about 41 credit cards, which is why the bigger object can feel more dominant than a single dimension suggests.
Key insight
Treat this as a shape swap, not a huge scale jump. What makes this pairing useful is that both objects come from the same general world, so the contrast feels intuitive rather than exotic. The gap shows up most clearly in height, so the pairing feels vertical before it feels mathematical.
FAQ
How big is Credit Card compared to Passport Book?
Passport Book is 1.46x longer than Credit Card. Credit Card is listed at 85.6 mm long, and Passport Book is listed at 12.5 cm tall.
Where does the size gap show up most clearly?
The gap shows up most clearly in height, so the pairing feels vertical before it feels mathematical.
What changes when both objects share the same scene?
Laid end to end, it takes about 1 credit card to match one passport book.