Abram [Abraham] was seventy and five years old when he departed out of Haran. Genesis 12:4
Abraham's father, Terah, was 70 years old when Abram was born.And Terah lived seventy years, and begat Abram [Abraham]. Genesis 11:26-32Abraham didn't leave Haran until after Terah died.Our father Abraham ... dwelt in Haran: and from thence, when his father was dead, he removed himself into this land. Acts 7:2-4And Terah lived to be 205. .And the days of Terah were two hundred and five years; and Terah died in Haran. Genesis 11:32So Abraham was at least 135 years old when he left Haran.