This comparison shows 3 objects drawn to scale. Drag the view to rotate it, or add your own items to the comparison.

| Object | As entered | Centimetres | Inches |
|---|---|---|---|
| watch | 30.0 × 3 × 10.0 mm | 3 × 0.3 × 1 cm | 1.18 × 0.12 × 0.39 in |
| this | 30.0 × 4 × 12.0 mm | 3 × 0.4 × 1.2 cm | 1.18 × 0.16 × 0.47 in |
| iphone (opens on Amazon in a new tab) | 147 × 7.4 × 71.5 mm | 14.7 × 0.74 × 7.15 cm | 5.78 × 0.29 × 2.81 in |

| Object | Volume | vs smallest |
|---|---|---|
| watch | 900 mm³ | 1× |
| this | 1.44 cm³ | 1.6× |
| iphone (opens on Amazon in a new tab) | 77.6 cm³ | 86× |
* Height × width × depth of the box each object fits in, not the object's own volume. Multiples are against the smallest box here, watch.