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Conversions
1 hm is equal to:
- 328 feet
- one side of a 1 hectare square
- a fifth of a modern li, a Chinese unit of measurement
- 100 metres
Wavelengths
- 1.0 hm — wavelength of the highest mediumwave radio frequency, 3 MHz
- 1.87 hm — shortest wavelength of the broadcast radio AM band, 1600 kHz
- 5.55 hm — longest wavelength of the broadcast radio AM band, 540 kHz
- 10.00 hm — wavelength of the lowest mediumwave radio frequency, 300 kHz
Sports
- 1.00 hm — the distance a very fast human being can run in about 10 seconds
- 1.00 hm — length of a Canadian football field
- 0.915 hm - 1.37 hm — length of a soccer field
Human-built structures
- 1.37 hm — height of the Great Pyramid of Giza
- 2.02 hm — length of the Széchenyi Chain Bridge connecting Buda and Pest
- 2.44 hm — height of the City Gate building in Ramat-Gan, Israel
- 3.00 hm — height of the Eiffel Tower
- 3.28 hm — height of Auckland's Sky Tower, the tallest free-standing structure in the Southern Hemisphere
- 3.41 hm — height of the world's tallest bridge, the Millau Viaduct
- 3.90 hm — height of the Empire State Building
- 4.43 hm — height of the Sears Tower, the tallest skyscraper in the United States
- 5.09 hm — height of the Taipei 101 building, the tallest skyscraper in the world
- 5.53 hm — height of the CN Tower, the tallest tower and freestanding structure in the world
- 6.30 hm — height of the KVLY-TV mast, second tallest structure in the world
- 6.46 hm — height of the Warsaw radio mast, the world's tallest structure until its collapse in 1991
- ~8.18 hm — projected height of Burj Dubai, currently world's tallest structure
Nature
- 1.155 hm — height of the world's tallest tree in 2007, the Hyperion sequoia
- 3.10 hm — maximum depth of Lake Geneva
- 3.40 hm — distance sound travels in air at sea level in one second; see speed of sound
Astronomical
- 5.40 hm — length of 25143 Itokawa, the smallest asteroid visited by a spacecraft
See also
