1 E21 m²
From Wikipedia, the free encyclopedia
To help compare sizes of different surface areas, we list here areas of the order of 1021 square metres, i.e. those between 1 quadrillion km² and 10 quadrillion km². See also areas of other orders of magnitude.
- Areas smaller than 1 quadrillion km²
- 1 quadrillion km² is equal to:
- 1 E21 m²
- 1.6 quadrillion km² — Ringworld (total area; fictional)
- Areas larger than 10 quadrillion km²

