Have you ever been watching sports and said to yourself "Wow these players were all born in the 90's, I am so old"?  Well here is a website tool to let you know just how old you are.

Deadspin has put together a tool so you can enter your birthday and it will show you the percentage of people in each of the major sports leagues that are younger than you.

For example. if you are 30, you are older than at least 84% of NFL players, 73% of NBA players, and 64% of MLB players.