Question: what is one punch man's power level?
Answer: Here it says boros going all out was a star buster, and since saitama was stronger than boros and the suns mass is 333,000 times greater than that of earths saitamas power level would be around 2,763,900,000, or 2.7 billion power level wise, and with feats saitama would be around freizas level to cells level.