To lose a pound of fat, you must create a caloric deficit of 3500 kcal.

However, how much of a caloric surplus must you create to gain a pound of muscle?

I searched this site and did not find an answer. I found an answer from Google, but it was from a site that said one gram of fat and one gram of protein had the same caloric content, so I don't think the site is too trustworthy.