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Equivalents in other units


How fast is 123 inches per hour?

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It's about 0.000000000003 times as fast as The Speed of Light.
In other words, 123 inches per hour is 0.00000000000289478041 times the speed of The Speed of Light, and the speed of The Speed of Light is 345,449,346,000 times that amount.
(C) (in a vacuum)
It's about 0.000000009 times as fast as a bolt of Lightning.
In other words, 123 inches per hour is 0.0000000089 times the speed of a bolt of Lightning, and the speed of a bolt of Lightning is 110,000,000 times that amount.
(atmospheric electrical discharge)
A bolt of lightning can travel at up to 14,000,000,000 inches per hour when arcing from the atmosphere to the Earth. An estimated 280 million lightning strikes strikes occur each year.
It's about 0.00000002 times as fast as a Meteor.
In other words, 123 inches per hour is 0.000000021 times the speed of a Meteor, and the speed of a Meteor is 48,000,000 times that amount.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
It's about 0.0000001 times as fast as The Space Shuttle.
In other words, 123 inches per hour is 0.00000011207 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 8,923,000 times that amount.
(Orbiter vehicle velocity)
It's about 0.0000010 times as fast as a Bullet (Rifle).
In other words, 123 inches per hour is 0.000000948 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 1,050,000 times that amount.
(5.56 x 45 mm, a.k.a. 5.56 NATO)
It's about one-seven-hundred-fifty-thousandth as fast as a Jet Fighter.
In other words, the speed of a Jet Fighter is 770,000 times 123 inches per hour.
(for Lockheed Martin F-16, a.k.a. Fighting Falcon, a.k.a. Viper) (maximum speed at altitude)
It's about one-four-hundred-fifty-thousandth as fast as a Bullet (Handgun).
In other words, 123 inches per hour is 0.00000226 times the speed of a Bullet (Handgun), and the speed of a Bullet (Handgun) is 442,000 times that amount.
(for .40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)