The Superhero Database Classification number, or SHDB Class, is a number that represents the overall 'power' of a character. All traits of a character are used for calculating the Classification.
What it DOESN'T mean
This doesn't mean that a higher class would always beat a lower class character. But the bigger the difference in Class is, the more obvious it is who'll win in a fight.
How is this calculated
( INT^1.3 + (STR*0.5 )^2 + (SPE*0.5)^2 + DUR^1.6 + (POW + (SPS*SPL))^2 + COM^1.8 ) ^ TIER
Super Power Score and Level
Every Super Power has a score (SPS) that is used to calculate the Class. Each Super Power also has 3 levels (SPL). The level is set when connecting that Super Power to a character. The level determines the final score, of the Super Power, being used in the calculation.
On this site, it is defined as, "Nigh-Omnipotence is a term referring to entities who within their retrospective verses, are nearly limitless in power. Beings of this level wield almost supreme power, but they have some form of limitation to their power and prevents them from gaining absolute power within their verse. They may be absolute on specific fields and not others or may simply be able to achieve an almost limitless number of effects across all fields with their near-omnipotent skills."
This has absolutely no mention of the tier system, or the size of complexity of the universe.
Safe to say, Chaos is nigh-omni