1 E+5 m²
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The base area of The Pentagon, Washington DC, United States, is 100,000 m2, if the courtyard is excluded.
To help compare sizes of different geographic regions, areas between 10 hectares (100,000 m2) and 100 hectares (1,000,000 m2) are listed below.
- Areas smaller than 0.1 km2
- 0.1 km2 is equal to:
- 1 E+5 m² or 100,000 m2
- 10 hectares
- 25 acres
- 1.08 million square feet
- the area of a square with side of 316.2 m
- 12 hectares – Base area of The Pentagon, USA
- 13 hectares - Place des Quinconces, Bordeaux
- 16.1874257 hectares - 40 acres - 1/16 section (US Survey block)
- 18 hectares - Jethou
- 19 hectares - Irish National Botanic Gardens
- 19 hectares - Liancourt Rocks (total area, all islets)
- 25 hectares - Tuileries Garden
- 28 hectares - Ponte Tresa (smallest municipality of Switzerland)
- 34 hectares - Disneyland (public areas)
- 35 hectares - Palace of the Parliament, Bucharest (floorspace)
- 36 hectares - Ryugyong Hotel in Pyongyang, North Korea (floorspace of largest unoccupied building)
- 40 hectares - Macroplaza, Monterrey
- 44 hectares - Vatican City (country ranked 234th by area)
- 44 hectares - Tiananmen Square, Beijing
- 62 hectares - The Pentagon (gross floor area)
- 72 hectares - Forbidden City, Beijing
- 90 hectares - Garden of the Versailles Palace [1]
- 99 hectares - Aalsmeer Flower Auction in Aalsmeer, Holland (floorspace)
- Areas larger than 1 km2
| Orders of magnitude for area | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 E−30 m2 = 1 fm2 | 1 E−24 m2 = 1 pm2 | 1 E−18 m2 = 1 nm2 | 1 E−12 m2 = 1 µm2 | 1 E−6 m2 = 1 mm2 | 1 E0 m2 = 1 m2 | 1 E+6 m2 = 1 km2 | 1 E+12 m2 = 1 Mm2 | 1 E+18-24 m2 : 1 Gm2 |
| 10 fm2 | 10 pm2 | 10 nm2 | 10 µm2 | 10 mm2 | 10 m2 | 10 km2 | 10 Mm2 | > 1 E+24 m2 : 1 Tm2 |
| 100 fm2 | 100 pm2 | 100 nm2 | 100 µm2 | 100 mm2 = 1 cm2 | 100 m2 = 1 a | 100 km2 | 100 Mm2 | |
| 1,000 fm2 | 1,000 pm2 | 1,000 nm2 | 1,000 µm2 | 10 cm2 | 10 a | 1,000 km2 | 1,000 Mm2 | |
| 10,000 fm2 | 10,000 pm2 | 10,000 nm2 | 10,000 µm2 | 100 cm2 | 10,000 m2 = 1 ha | 10,000 km2 | 10,000 Mm2 | |
| 100,000 fm2 | 100,000 pm2 | 100,000 nm2 | 100,000 µm2 | 1,000 cm2 | 10 ha | 100,000 km2 | 100,000 Mm2 | |
| SI derived unit square metre, from base unit metre | Conversion of units for area | |||||||