
It's about 20,000 times as fast as Grass growing.
In other words, 123 inches per hour is 22,000 times the speed of Grass growing, and the speed of Grass growing is 0.000045 times that amount.
(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 an inch per week in the summer months under ideal conditions. When left unmowed, Kentucky Bluegrass grows to heights of 60 to 90 cm (2 to 3 ft) and blossoms with a blue flower.
It's about oneseventyfifth as fast as a Sloth.
In other words, the speed of a Sloth is 77 times 123 inches per hour.
(for Brownthroated threetoed sloth, Bradypus variegatus)
It's about onefivehundredth as fast as an Iceberg.
In other words, the speed of an Iceberg is 500 times 123 inches per hour.
(a.k.a. Berg) (Newfoundland iceberg average)
It's about oneonethousandfivehundredth as fast as Walking Pedestrians (in Manhattan).
In other words, the speed of Walking Pedestrians (in Manhattan) is 1,500 times 123 inches per hour.
(Manhattan; average speed; 8,978 personsample)A 2006 Study by the New York City Department of City Planning found that pedestrians in that city walk at an average rate of 180,000 inches per hour. Pedestrians wearing headphones, the study went on to find, walk at a slightly faster 200,000 inches per hour
It's about onetwothousandth as fast as Michael Phelps.
In other words, 123 inches per hour is 0.00044676 times the speed of Michael Phelps, and the speed of Michael Phelps is 2,238.3 times that amount.
(at the Beijing Olympics, 2008; 200 m freestyle) (a.k.a. Michael Fred Phelps) (swimmer; 1985)
It's about onethreethousandth as fast as a Crocodile.
In other words, 123 inches per hour is 0.00032 times the speed of a Crocodile, and the speed of a Crocodile is 3,100 times that amount.
(American Crocodile, Crocodylus acutus) (swimming speed)
It's about oneseventhousandfivehundredth as fast as a Bull.
In other words, the speed of a Bull is 7,700 times 123 inches per hour.
(for animals involved in the Running of the Bulls, a.k.a. Encierro, San Fermin, Pamplona, Spain) (herd average speed) 
