Funny, my boss sent me this site earlier today! I uploaded a photo and it guessed my age exactly right. I was really hoping it would think I was younger though. I uploaded another of me and DH together and on that one it made me 1 year older and my DH 3 years older. Pretty close, though!
My boss is mad, it keeps adding 10 years to his age. He thinks it's crazy but honestly, he does look 10 years older than he is, LOL. (He wasn't amused when I told him that, LOL)