How old was Paul when Jesus was crucified?
Paul, then Saul of Tarsus, was about the same age as Christ and likely 30 to 35 years old when Christ was crucified. During Christ's earthly ministry he was in the prime of life, with youthful exuberance between 25 and 30.
Les explains that Saul was no doubt about the same age as Christ, probably contemporary with Him in age. He was probably 30, 35 when Christ was crucified, which means during Christ's earthly ministry Saul of Tarsus was very prime of life. He was filled with that youthful exuberance between 25 and 30. Even though he never indicates that he met Jesus face to face, as a religious Jew he knew everything that was going on in Israel and knew all about Jesus.
Wherefore henceforth know we no man after the flesh: yea, though we have known Christ after the flesh, yet now henceforth know we him no more.