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Equivalents in other units


How fast is 581 mach?

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It's about one-one-thousand-five-hundredth as fast as The Speed of Light.
In other words, 581 mach is 0.000642552791 times the speed of The Speed of Light, and the speed of The Speed of Light is 1,556.29236 times that amount.
(C) (in a vacuum)
It's about two times as fast as a bolt of Lightning.
In other words, the speed of a bolt of Lightning is 0.5 times 581 mach.
(atmospheric electrical discharge)
It's about four-and-a-half times as fast as a Meteor.
In other words, the speed of a Meteor is 0.22 times 581 mach.
(formally Meteoroid or meteorite, depending on the context; a.k.a. "shooting star", a.k.a. "falling star")
Small meteoroids enter the Earth's atmosphere at speeds between 34 mach and 220 mach, depending on their size. The fireball effect, known as ablation, ceases once the atmosphere has slowed the meteoroid to a velocity of about 8.4 mach.
It's about twenty times as fast as The Space Shuttle.
In other words, 581 mach is 24.876 times the speed of The Space Shuttle, and the speed of The Space Shuttle is 0.040199 times that amount.
(Orbiter vehicle velocity)
It's about 200 times as fast as a Bullet (Rifle).
In other words, 581 mach is 211 times the speed of a Bullet (Rifle), and the speed of a Bullet (Rifle) is 0.00474 times that amount.
(5.56 x 45 mm, a.k.a. 5.56 NATO)
It's about 300 times as fast as a Jet Fighter.
In other words, 581 mach is 290 times the speed of a Jet Fighter, and the speed of a Jet Fighter is 0.0034 times that amount.
(for Lockheed Martin F-16, a.k.a. Fighting Falcon, a.k.a. Viper) (maximum speed at altitude)
An F-16's maximum speed at altitude is approximately Mach 2. The F-16 has a flight ceiling of approximately 15 km (9.32 mi).
It's about 500 times as fast as a Bullet (Handgun).
In other words, 581 mach is 502 times the speed of a Bullet (Handgun), and the speed of a Bullet (Handgun) is 0.00199 times that amount.
(for .40 Smith & Wesson 135 grain Sierra JHP, VV 3N37 powder, Fed. 100 primer, Remington case) (muzzle velocity)