Originally posted by Astner
Isn't the entire point of Saitama that there isn't a tangible limit to his power? He's a parody character. Heck, even Boros pointed out that Saitama held back and barely used a fraction of his strength when they fought.
Boros pointed out that Saitama didn't use his full power. He still used his serious series, which is likely around 50% of his strength.
Either way, he's considered planetary, meaning other characters that can one-shot planets with a punch are considered as his peers. Meaning he could actually overpower a lot of versions of Superman, and Hulk.