How old was thorin oakenshield?

Answer 1

195, which would be equivalent more or less to nearing 60 in human standards (though it's important to keep in mind that average humans in Middle Earth live to be circa 70 years old, give or take, while dwarves usually live to 250)

Answer 2

He was 249 when he died in the battle of five armies and was buried with the Arkenstone of Thrain

Answer 3

He was born in Third Age 2746 and died in 2941, making him 195 years old.

Answer 4

194/195 years old.