This is what speed a character can be. This can also be organized in Tiers.
The Tiers are organized in order of until(ex: [Tier 1]-100m/s. Anything at that range or under is tier 1 until the first tier 1).
[Tier 1]-1 m/s: Human Speed
[Tier 1]-10 m/s: Peak Human Speed
[Tier 1]-100 m/s: Peak travel Speed of Arrows,Fireworks and Speed of Super cars and Formula One
[Tier 2]-Supersonic: 340 m/s Mach 1
[Tier 2]-Supersonic+: 1,000 m/s Mach 3-4
[Tier 3]-Hypersonic: 1,701.45 m/s Mach 5
[Tier 3]-Hypersonic+: 1,701.45 m/s Mach 10
[Tier 4]-Mach 23: 7,858 m/s
[Tier 4]-Massive Hypersonic: 34,029 m/s Mach 100 - 999
[Tier 4]-Massive Hypersonic+:340,290 m/s Mach 1,000-9,990
[Tier 5]-Sub-relativistic: 3,402,900 m/s Mach 10,000 -99,999
[Tier 5]-Relativistic: 34,029,000 m/s Mach 100,000
[Tier 6]-Speed of Light: 299,792,458 m/s Mach 880,991
[Tier 6]-LS+:10x Speed of light
[Tier 6]-LS++: 100x Speed of light
[Tier 7]-Massive LS: 1,000x Speed of light
[Tier 7Massive LS+: 1,000,000x Speed of light
Massive LS++: 1,000,000,000x Speed of light
Massive LS+++: 1,000,000,000,000 Speed of light
Abstract/Unknown:
Infinity:
[1] Speed Tier List from mvc