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Area
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Equivalents in other units


How fast is 391 meters per hour?

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It's about 2,500,000 times as fast as Grass growing.
In other words, the speed of Grass growing is 0.00000037 times 391 meters per hour.
(for Kentucky Bluegrass, Poa pratensis) (a.k.a. Smooth Meadow grass, a.k.a. Common Meadow grass) (Summer months, ideal growing conditions)
Kentucky Bluegrass, one of the most common grasses in North America, grows about 0.00015 meters per hour in the summer months under ideal conditions. When left un-mowed, Kentucky Bluegrass grows to heights of 60 to 90 cm (2 to 3 ft) and blossoms with a blue flower.
It's about one-and-three-fifths times as fast as a Sloth.
In other words, the speed of a Sloth is 0.63 times 391 meters per hour.
(for Brown-throated three-toed sloth, Bradypus variegatus)
The three-toed sloth moves along the ground at an average speed of 240 meters per hour. Long thought to be lengthy sleepers, a 2008 study concluded that sloths sleep an average of only 9.6 hours per day.
It's about one-fifth as fast as an Iceberg.
In other words, the speed of an Iceberg is 5 times 391 meters per hour.
(a.k.a. Berg) (Newfoundland iceberg average)
Moved by ocean currents and wind, icebergs can drift at speeds of about 2,000 meters per hour. The largest iceberg ever recorded was a found near Baffin Island, Nunavut and was estimated to be nine billion metric tons.
It's about one-tenth as fast as Walking Pedestrians (in Manhattan).
In other words, the speed of Walking Pedestrians (in Manhattan) is 12 times 391 meters per hour.
(Manhattan; average speed; 8,978 person-sample)
A 2006 Study by the New York City Department of City Planning found that pedestrians in that city walk at an average rate of 4,700 meters per hour. Pedestrians wearing headphones, the study went on to find, walk at a slightly faster 5,100 meters per hour
It's about one-twentieth as fast as Michael Phelps.
In other words, 391 meters per hour is 0.055913 times the speed of Michael Phelps, and the speed of Michael Phelps is 17.885 times that amount.
(at the Beijing Olympics, 2008; 200 m freestyle) (a.k.a. Michael Fred Phelps) (swimmer; 1985-)
Setting a world record, Michael Phelps swam the 200 m freestyle in 1:42.96 for an average speed of 6,993 meters per hour. Phelps would go on to win nine gold medals individually in the 2008 Olympics - more than all but eight of the competing nations.
It's about one-twenty-fifth as fast as a Crocodile.
In other words, the speed of a Crocodile is 25 times 391 meters per hour.
(American Crocodile, Crocodylus acutus) (swimming speed)
An American crocodile can reach speeds in the water of up to 10,000 meters per hour. On land, larger crocodiles can "gallop" when fleeing danger at speeds of up to 20,000 meters per hour.
It's about one-sixty-fifth as fast as a Bull.
In other words, the speed of a Bull is 63 times 391 meters per hour.
(for animals involved in the Running of the Bulls, a.k.a. Encierro, San Fermin, Pamplona, Spain) (herd average speed)
The herd of the annual Encierro in Pamplona, Spain runs at an average speed of 24,000 meters per hour. The Encierro is run annually from July 7th through July 14th and involves 42 bulls, 77 oxen, and an estimated 17,000 runners over the course of the event.