Donut vs Passport Book
Two hand sized objects with very different presence
Two hand sized objects with very different presence. Donut and Passport Book feel close enough in size that the comparison is mostly about proportions and silhouette.
Compare in 3D
Passport Book reads as 1.25x the size of Donut. Recommended view: Side by side.
Both objects stay in one true-scale scene because the ratio is still readable.
Donut to Passport Book
Side by side
1.25x gapBoth objects appear in one shared scene.
Short answer
Donut 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 1.25x longer than Donut. Stacked up, it takes about 1 donut to reach one passport book.
Donut is a ring-shaped frosted donut with a round outer edge and a center hole. Passport Book is a closed passport book with a dark cover and a compact rectangular shape. Put together, stacked up, it takes about 1 donut to reach one passport book.
Donut to Passport Book
Best first workspace for this ratio.
A fast gut-check for the size jump.
Dimension breakdown
| Property | Donut | Passport Book | Ratio |
|---|---|---|---|
| Characteristic size | 10 cm in diameter | 12.5 cm tall | 1.25x |
| Length | — | 12.5 cm | Not available |
| Width | — | 8.8 cm | Not available |
| Height | 3 cm | 1.4 cm | 0.467x |
| Diameter | 10 cm | — | Not available |
| Category | food | 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. Donut and Passport Book also separate through footprint, thickness, or diameter once you stop treating them like flat outlines.
Familiarity can distort the comparison
When one object is more familiar in daily life, people often use it as the default unit and either overstate or understate the gap. This pair works better when you compare occupied space directly instead of trusting whichever object feels more familiar.
Key insight
Treat this as a shape swap, not a huge scale jump. Donut and Passport Book come from different parts of everyday life, which is why the comparison feels more like a change of setting than a small step up in size. The gap shows up most clearly in height, so the pairing feels vertical before it feels mathematical.
FAQ
How big is Donut compared to Passport Book?
Passport Book is 1.25x longer than Donut. Donut is listed at 10 cm in diameter, 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?
Stacked up, it takes about 1 donut to reach one passport book.