Scale Explorer — Interactive Size Comparison

Navigate the full scale of the universe using our interactive explorer. Zoom through more than 60 objects spanning every order of magnitude, from the smallest known particles to the edge of the observable cosmos.

Scale Categories

  • Quantum scale — Planck length, quarks, protons, neutrons (10⁻³⁵ m to 10⁻¹⁵ m)
  • Atomic scale — atoms, electrons, atomic nuclei (10⁻¹⁴ m to 10⁻¹⁰ m)
  • Molecular scale — water molecules, DNA, viruses (10⁻⁹ m to 10⁻⁷ m)
  • Cellular scale — bacteria, red blood cells, human cells (10⁻⁶ m to 10⁻⁴ m)
  • Human scale — insects, humans, buildings (10⁻³ m to 10³ m)
  • Earth scale — mountains, continents, Earth itself (10⁴ m to 10⁷ m)
  • Solar system scale — Moon, planets, Sun (10⁸ m to 10¹² m)
  • Stellar scale — nearby stars, red giants, supergiants (10¹³ m to 10¹⁵ m)
  • Galactic scale — nebulae, star clusters, the Milky Way (10¹⁶ m to 10²¹ m)
  • Cosmic scale — galaxy groups, superclusters, the observable universe (10²² m to 10²⁷ m)