According to this article Smokey the cat (pictured) has a purr so loud that it has been measured at 92 decibels. That’s about four times louder than the average cat and is loud enough to drown out the sound of the TV or a conversation. She is quite cute but I can see how it might start to become a little bit annoying. Our cats do purr quite loudly but we do also have a problem with one of them making a constant howling noise when she is ignored. The only solution is to put her on your lap and she is immediately silent.