from Iphone 5S to Moto X and a quesiton. topic

Its been a while since I've had an Android device but just got my Moto X Developer Edition, I used to play around a lot with Roms and things like that and really liked it but again that's been a while. My first question is this, whats the easiest way to get my contacts from my Iphone 5S to the Moto X nowdays?
Thank you