Sasuke moves at the speed of light.
Other characters... I dunno, we usually see shunshin used as an escape jutsu, when used as an offensive ability they travel around 10-20 meters per second ( like when Raikage tried to speedblitz Yondaime and Yondaime saved Kushina from Kyuubi ) judging rougly by how much they move.
Gaara back in part 1 shunshined from the ring of the preliminaries to the stands in a single swoop, dunno how much that is.
Surely isn't mach 1000
If Sasuke moves at the speed of light hes like mach 1,000,000
When Sasuke uses shunshin he doesn't move... he rotates the planet so that everything else changes position.
Realistically speaking I'd say that part one rock lee went about the speed of sound when he fought gaara.
Minatos speed is instantaneous with FTG
And as far as As and Narutos speed, I'd say it's a good amount faster than the speed of sound
Above speed of sound to varying extents for different characters. Will never try to put a concrete mach number since Kishi himself really probably don't give too much of a damn and contradictions will surely arise when you do that for every character.
Space-time ninjutsu. Speed of thought.
A ninja must conserve energy. Therefore, just a little faster than his/her opponent.
20m - 1s = 72km/h
30m - 1s = 108km/h
40m - 1s = 144km/h
50m - 1s = 180km/h (Gaara?)
Here's the tricky bit. Speed reckoned from the smallest measure of time taken to attack/respond to an attack.
10m - 1s = 36km/h
10m - 0.5s = 72km/h
10m - 0.1s = 360km/h (Basic reason for Haiai exclamation?)
10m - 0.01s = 3600km/h (Mach 3)
42m - 0.001s = 151200km/h (lightning speed as stated by
US department of energysome scientists)
This is without considering other variables.
Deception+ Tactics+ Speed = Naruto vs A's fastest attack!
Would have been interesting to see someone more interested in crunching numbers than me check out relative speed based on movements in the Anime.
The real question is, how fast will they become. Soon enough people will be fast enough that the Spectre has to interfere (any DC fan will get this)