How old was Abraham when god called him?

According to the Bible, God first called Abraham when he was 75 years old. This is described in Genesis 12:1-3, where God instructs Abraham to leave his home in Ur and go to a land that God would show him. Abraham is considered a significant figure in Judaism, Christianity, and Islam, and is often referred to as the “father of many nations” due to the covenant God made with him that his descendants would be as numerous as the stars in the sky.