Does One for All give unlimited power? In the fight with Noumu, since Noumu was as strong as All Might, and it was made to battle All Might at 100%, All Might has to punch him with over 100% of his power. And in the last episode of My Hero Academia (Season 3, Episode 4)


   Midoriya punchs muscular with One for All 1,000,000% 


Does this mean One for All give unlimited power? Or how can they punch with over 100% of their power?
One for All gives unlimited power?

No, it doesn't. You can't just get 101% power, where is the extra 1% coming from? Out of nowhere? Nothing comes out of nothing! By 100% power, it means the power of all the successors of One for All (as far as I understood).
Thus again, it is impossible to get unlimited power.

And if you based your question (clearly you did) after watching Midoriya using One for All at 1,000,000%, I would ask you to think of it again. Can Midoriya even use 100% of One for All in his current condition?


   Clearly Midoriya can't even use or control 50% of his power (or let's just agree that he can't use his full power yet without arguing on the percentage)




Now it's time to unravel the mystery. How did Midoriya use 1,000,000% of One for All? Without saying a word, I will just post a picture of the Author explaining how he did that: