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
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			This box: view • talk • edit