This comparison shows 8 objects drawn to scale. Drag the view to rotate it, or add your own items to the comparison.
| Object | As entered | Centimetres | Inches |
|---|---|---|---|
| Proton | 0 × 0 × 0 m | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Neutron | 0 × 0 × 0 m | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Helium Nucleus | 0 × 0 × 0 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Uranium nucleus | 0 × 0 × 0 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| X Ray Wavelength | 0.01 × 0 × 0 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Helium Atom | 0.03 × 0.03 × 0.03 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Hydrogen Atom | 0.05 × 0.05 × 0.05 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Oxygen Atom | 0.18 × 0.18 × 0.18 nm | 0 × 0 × 0 cm | 0 × 0 × 0 in |
| Object | Volume | vs smallest |
|---|---|---|
| Proton | 1 × 10−36 mm³ | 1× |
| Neutron | 1 × 10−36 mm³ | 1× |
| Helium Nucleus | 3.3 × 10−35 mm³ | 33× |
| Uranium nucleus | 1 × 10−33 mm³ | 1,000× |
| X Ray Wavelength | 1 × 10−28 mm³ | >1,000,000× |
| Helium Atom | 1.6 × 10−23 mm³ | >1,000,000× |
| Hydrogen Atom | 1.3 × 10−22 mm³ | >1,000,000× |
| Oxygen Atom | 5.8 × 10−21 mm³ | >1,000,000× |
* Height × width × depth of the box each object fits in, not the object's own volume. Multiples are against the smallest box here, Proton. Anything beyond a million times bigger is shown as >1,000,000×.